Your Reddit post looks live to you and is invisible to everyone else. In most cases, that is Reddit AutoModerator doing exactly what a moderator told it to do. Reddit AutoModerator (AutoMod) is a free, rules-based moderation bot built into every subreddit that automatically removes, filters, approves, or flags posts and comments based on custom YAML rules written by that community's moderators. We run Reddit accounts and engagement campaigns at scale, and AutoMod is the single most common reason a marketing post dies before a human ever sees it. This guide covers how it works, the rules that catch marketers, and how to pass them without breaking anything.
Key takeaways
- AutoMod is configured per subreddit in YAML. There is no single ruleset to learn, every community is a different gate.
- Reddit's H1 2024 Transparency Report shows 71.9% of all moderator content removals were proactive AutoMod removals.
- AutoMod is one of four automated layers. Safety Filters, Post Guidance, and Reddit's sitewide spam filter also hold or remove content, and each needs a different fix.
- "Filtered" and "removed" are different outcomes. Filtered posts sit in the mod queue and can be approved. Removed posts are usually final.
- Karma minimums, account age gates, CQS checks, keyword blacklists, and domain blocks catch most marketing posts.
- Editing a live post triggers a fresh AutoMod check. An edit can kill a post hours after it survived submission.
What Is Reddit AutoModerator and How Does It Work?
AutoModerator is a sitewide moderation bot that Reddit provides free to every subreddit. Moderators write rules in YAML on a hidden wiki page, and AutoMod checks every new post, comment, edit, and report against those rules in real time, firing actions like remove, filter, approve, flair, or report the instant a rule matches.
AutoMod started life as a third-party bot in 2012 and was integrated natively into Reddit in 2015. Today it runs in virtually every active community, and its scale is hard to overstate: Reddit's Transparency Report for the first half of 2024 attributes 40.7% of all content removals to moderators, and 71.9% of that moderator-removed content came from proactive AutoMod removals. Before a human moderator has seen anything, AutoMod has already handled most of the job.
Most moderator enforcement is a bot acting on rules — before a human ever sees your post.
Each rule is a set of conditions paired with a set of actions. Conditions can examine the submission itself (title, body, URL, domain, post type, flair) and, more importantly for marketers, the account behind it (karma, age, verified email, Contributor Quality Score, posting history in that community). When every condition in a rule matches, the actions fire immediately. Rules are processed one after another, and a submission that matches nothing simply goes live or into the normal review queue.
A typical trust gate looks like this:
type: submission
author:
combined_karma: "< 250"
account_age: "< 45 days"
action: filter
action_reason: "Low trust account, hold for review"
That rule silently holds every post from any account under 250 combined karma or 45 days of age. It does not read your post. It does not care how useful your content is. AutoMod evaluates attributes, not intent, and that is why a genuinely good post from a fresh account dies while a mediocre post from an aged account sails through.
Three constraints from Reddit's official AutoMod documentation matter in practice. AutoMod only acts on new posts, comments, reports, and edits, so it cannot retroactively sweep old content, but it does re-check anything you edit. It cannot delay actions, so everything it does happens within seconds of submission. And moderators are exempt from their own rules by default, which is why a sub's mods can post things you cannot.
That edit behavior is the detail almost nobody knows. We have watched posts survive submission cleanly, sit live for hours, then vanish the moment a link or a promotional phrase was edited into the body. If a post is live and working, leave the body alone.
Is AutoModerator the Only Thing Filtering Your Posts?
No. AutoMod is one of at least four automated layers that can remove or hold your content: AutoMod itself, the newer Automations and Post Guidance system, Reddit's optional Safety Filters, and the sitewide spam filter operated by Reddit rather than by moderators. Diagnosing the right layer matters because each one has a different fix.
| Layer | Who controls it | What it does | How you notice |
|---|---|---|---|
| AutoModerator | Subreddit mods, custom YAML | Removes, filters, reports, or flairs content matching rules | Post vanishes or gets a bot sticky comment seconds after submission, in that one subreddit |
| Automations / Post Guidance | Subreddit mods, visual rule builder | Warns you or blocks submission before you press post | You see the rule text while composing, the post never goes through |
| Safety Filters (Reputation, Ban Evasion, Crowd Control, Harassment) | Mods toggle them on, Reddit's models do the judging | Filters content from unestablished accounts, suspected spammers, or ban evaders into the mod queue | Post shows for you, missing for others, sometimes appears later once approved |
| Sitewide spam filter | Reddit, not mods | Platform-level spam detection across all of Reddit | Same removal pattern across multiple unrelated subreddits |
Two of these layers deserve special attention because they are newer and every "AutoMod guide" in the search results ignores them.
Post Guidance, part of Reddit's Automations system, checks your post against community rules while you are still typing and can block the submit button entirely. It is the friendliest layer because it tells you exactly what is wrong before you burn the post. Reddit's own early experiments found communities that enabled Post Guidance saw a 35% drop in AutoMod removals, which means an increasing share of enforcement now happens before submission instead of silently after it.
The Safety Filters are the opposite: nearly invisible. The Reputation filter holds content from accounts Reddit's models flag as potential spammers or as unestablished. Crowd Control filters contributions from people who are not yet trusted members of that specific community. Ban Evasion catches accounts linked to previously banned ones. Mods only flip a toggle, Reddit's models decide who gets caught, and there is no rule text to reverse-engineer. If your posts get held in a subreddit even though you clear its stated karma and age minimums, a Safety Filter is the likely culprit, and the only fix is a more established, better-behaved account.
The quick diagnostic: blocked while typing means Post Guidance. Vanishing in one subreddit means AutoMod or a Safety Filter there. Vanishing everywhere means the sitewide spam filter or a shadowban, which is an account problem, not a subreddit problem.
Which Reddit AutoModerator Rules Catch Marketers Most Often?
Five rule categories account for nearly every marketing post AutoMod kills: karma minimums, account age gates, Contributor Quality Score checks, keyword and domain blacklists, and post structure requirements. Every subreddit mixes them differently, but the categories themselves repeat everywhere.
| Rule type | What it checks | Typical marketer trigger | What actually fixes it |
|---|---|---|---|
| Karma minimum | Comment, post, or combined karma | Fresh or barely used accounts under the gate | Earn comment karma before posting anything promotional |
| Account age | Days since account creation | Posting in the first days or weeks of an account | Time. Nothing legitimately accelerates account age |
| CQS check | Contributor Quality Score tier | Accounts on flagged IPs, shared devices, or with spam history | Raise the score through clean, consistent activity |
| Keyword and regex blacklists | Words and patterns in title and body | Promotional phrasing, banned brand names, URLs in text | Write like a community member, keep links out of the body |
| Domain blocks | Link post URLs and links in body text | Your own domain, affiliate links, URL shorteners | Use text posts, mention the brand contextually |
| Post structure rules | Post type, flair, title format, length | Missing flair, link post in a text-only sub, wrong title pattern | Read the sidebar and match the format exactly |
| Self-promotion patterns | Account history and posting ratios | Every submission pointing at the same domain | Keep promotion to a small fraction of total activity |
Karma minimums are the most common gate. Across the account network we operate, most mid-size subreddits sit somewhere between 50 and 500 comment karma, usually paired with an age requirement between one week and three months. Either condition failing blocks the post on its own. Comment karma specifically matters more than post karma in most configs, because spam accounts post but rarely comment. If your accounts are under the gates, fix that first: our guide to building karma fast without getting banned covers the practical route.
The CQS check is the one most marketers have never heard of. Reddit exposes each account's Contributor Quality Score to AutoMod as an author condition, so a rule can filter everyone below a tier:
type: submission
author:
contributor_quality: "< moderate"
action: filter
An account can clear every karma and age threshold and still get held by this one line. CQS reacts to signals like IP reputation, device sharing, and past removals, which is why it quietly wrecks accounts run through sloppy proxy setups. We break down the tiers and how to raise them in our Contributor Quality Score guide.
Keyword blacklists are built from the spam each community has already seen, so they read like a catalog of marketing reflexes: discount codes, "check out my", "link in bio", competitor brand names, and raw URLs inside text bodies. You cannot see the list, but you can stop sounding like it. Text that would be normal in a conversation passes. Text that would fit on a landing page does not.
What Is the Difference Between Filtered, Removed, and Reported?
They are three different AutoMod actions with three different outcomes. Remove takes the content down silently and usually permanently. Filter holds it in the moderator queue, invisible to the public until a human approves or rejects it. Report leaves it live but flags it for moderator review. Only filtered content routinely comes back.
| Action | Where your post goes | Can it come back? | Your move |
|---|---|---|---|
| Remove | Taken down instantly, invisible to everyone but you | Rarely, only via modmail appeal | One short, polite modmail if you believe it was a false positive |
| Filter | Held in the mod queue, invisible until reviewed | Yes, routinely, when a mod approves it | Wait. Do not delete, do not repost |
| Report | Stays live, flagged for review | It never left | Nothing, unless a mod later removes it |
This distinction changes what you should actually do. A filtered post is not dead, it is in line. Deleting it pulls it out of that line, and reposting the same content reads as filter evasion to both the mods and Reddit's sitewide systems. The patient move wins here.
It also changes when you should post. Filtered content only goes live when a human works through the queue, so submitting during a subreddit's active hours means false positives get rescued in minutes instead of sitting in the queue overnight while your post's momentum window closes. Check a community's active hours with our free best time to post tool before submitting anything that might get held.
How Do You Check If AutoModerator Removed Your Post?
Open your post's direct URL in a logged-out or private browser window. If the post shows as removed, errors out, or is missing from the subreddit's new feed, it was removed or filtered. Your logged-in view always shows your own content as live, so it proves nothing.
The logged-out check is the fast test for a single post. For your account's whole history, run it through our free removed content viewer, which compares what you posted against what is actually publicly visible and surfaces every silent removal. We run this monthly on every account we manage, because the pattern is the diagnosis: removals concentrated in one subreddit point at that sub's AutoMod config, removals spread across unrelated subreddits point at an account-level problem.
Three more signals worth checking. Some subreddits publish their moderation log at reddit.com/r/subredditname/about/log, which shows recent actions and which were taken by AutoModerator. Many configs leave a sticky comment on removed posts explaining which rule fired, so read any bot comment carefully, it is the rule text handed to you. And a short, factual modmail asking why a post was removed gets answered surprisingly often, since a Virginia Tech study of Reddit moderation transparency found that among sanctioned posts given no removal reason, AutoModerator was responsible for 31.2%, and human mods know their bot produces false positives.
If content is vanishing everywhere rather than in one community, stop debugging AutoMod and test the account itself with our free shadowban checker. The two problems get confused constantly and have completely different fixes, which we cover in the Reddit shadowban guide.
How Do You Read a Subreddit's AutoMod Rules Before You Post?
You usually cannot see the config directly, but subreddits leak their rules in predictable places: Post Guidance prompts show rule text while you type, AutoMod removal comments quote the rule that fired, public mod logs list action reasons, and the sidebar or wiki often states karma and age minimums outright.
This is the pre-post workflow we run before opening any new subreddit for a campaign:
- Pull the stated requirements. Run the community through our free subreddit stats checker to see its karma and age posting rules before you burn a post finding them out the hard way.
- Read the sidebar, pinned posts, and wiki. Flair requirements, title formats, and banned content types are usually written down. AutoMod just enforces what is already published.
- Scan the new feed for bot comments. Sort by New and look for AutoModerator sticky comments on other people's posts. Each one is a live sample of that sub's ruleset.
- Check the mod log if it is public. Action reasons in the log tell you exactly which rule types fire most often.
- Draft the post and watch for Post Guidance. If a warning appears while composing, that warning is the rule, quoted back to you for free. Fix the draft instead of fighting the filter.
- Check your account against the gate. Run the posting account through our free Reddit user analyzer and confirm its karma and age clear the sub's requirements with room to spare.
One operator note from running this at scale: your history with a subreddit compounds. Accounts whose first posts get removed in a community tend to get filtered more aggressively there afterward, both by Safety Filters and by mods who recognize the name. Ten minutes of recon before the first post protects every post that follows.
How Do You Get Past AutoModerator Without Breaking the Rules?
You pass AutoMod by making the account and the post match what its rules expect from a trusted community member: enough karma and age, a clean CQS, community-style language, the right structure, and enough early engagement to clear any score-based rules.
Build the account before you need it. Every age and karma gate exists specifically to stop fresh accounts, so an account created the week of your campaign will fail most serious subreddits no matter what it posts. Age, karma, and CQS all build in parallel when you warm up Reddit accounts properly, and none of them can be rushed at the moment you need them.
Write like a member, not a marketer. Keyword filters are trained on the promotional language communities have already banned. Lead with the problem, use the community's own vocabulary, and keep the tone conversational. Prefer text posts over link posts: domain blocklists cannot fire on a link that is not there, and a valuable text post that mentions your product contextually survives where a bare link dies.
Match the structure exactly. Required flair, title formats, and minimum lengths are enforced within seconds. These are the cheapest removals to avoid because the requirements are public.
Do not edit promotion into a live post. AutoMod re-checks edits. A clean post that survives submission can be removed hours later because a link was added. Whatever needs to be in the post goes in before you submit.
Clear the score-based rules. Some configs go beyond account attributes and remove or filter posts whose score drops below a threshold in the first hour, which quietly kills content that passes every account check but gets no early traction. Earning that traction organically is covered in our guide to getting upvotes on Reddit. When the post matters and the window is short, that first hour is exactly what our Reddit upvote service covers: real accounts, gradual delivery, timed to the launch window so a post that already cleared AutoMod's account gates also survives its engagement gates.
Respect the ratio. Reddit's self-promotion guidance and most subreddit cultures expect participation to heavily outweigh promotion. Accounts that only ever post their own links trip pattern-based rules and human suspicion alike.
The honest tradeoff: AutoMod is not your enemy, it is the reason the communities you want to reach are worth reaching. Trying to cheat it with account cycling, word obfuscation, or link cloaking feeds directly into the sitewide systems built to catch exactly that, and those systems ban accounts, not posts. The durable play is an account AutoMod has no reason to doubt, content the community actually wants, and selective amplification where the engagement gates demand it.
FAQ
Does AutoModerator remove comments too?
Yes. AutoMod evaluates every new comment against the same ruleset as posts. Comment rules commonly target links, banned keywords, and low-karma or new accounts. A removed comment stays visible to you while being hidden from everyone else, so spot-check important comments from a logged-out browser the same way you check posts.
Can you appeal an AutoModerator removal?
Yes, through modmail to that subreddit's moderator team. Keep it short: link the post, say you believe it was auto-removed in error, and ask if it can be approved. Human moderators can override any AutoMod action. Polite, specific messages get approvals; complaints and repeat messages get ignored or muted.
Does deleting and reposting a filtered post work?
Usually it backfires. A filtered post is sitting in the mod queue waiting for approval, and deleting it removes it from that queue. Reposting the same content also looks like filter evasion, which many configs and Reddit's sitewide systems specifically watch for. Wait for review or send one modmail instead.
Does editing a post trigger AutoModerator again?
Yes. Reddit's documentation confirms AutoMod acts on new posts, comments, reports, and edits. An edit re-runs the checks against the current ruleset, so adding a link or promotional phrasing to an already live post can get it removed hours after it survived submission. Keep edits minor and keep links out.
How much karma do you need to pass AutoModerator?
There is no universal number because every subreddit sets its own thresholds. Across the communities we post in daily, most gates fall between 50 and 500 comment karma, paired with account age minimums from one week to three months. Larger subreddits sit at the high end and often add CQS checks.
Is an AutoMod removal the same as a shadowban?
No. AutoMod removals are per-subreddit: your content is removed in one community but works fine elsewhere. A shadowban is account-level: everything you post is invisible everywhere on Reddit. If your posts vanish in a single subreddit, suspect AutoMod. If they vanish sitewide, run a shadowban check on the account immediately.
Related reading