Reddit's Spam Filter: Why Posts Get 'Removed by Reddit Filters' (2026)

Reddit's spam filter operates independently of shadowban. Posts get marked "removed by Reddit filters" or "removed by spam filter", visible to you in your profile but hidden from the subreddit feed. Understanding why and how to recover is critical.

1. The spam filter vs shadowban

Spam filter

• Post-specific removal.
• Message: "removed by Reddit filters."
• Account still functional.
• Mods can approve if noticed.

Shadowban

• Account-wide silent removal.
• No message.
• Affects all posts.
• Usually permanent.

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2. What triggers the spam filter

Account-level triggers

• New account (< 30 days).
• Low karma (< 100).
• Low CQS.
• Flagged IP / device.

Post-level triggers

• Link to flagged domain.
• Duplicate text / title.
• URL shorteners (bit.ly, etc.).
• Known commerce-flagged TLDs.
• Images from flagged hosts.

Velocity triggers

• Multiple posts in quick succession.
• Same content to multiple subs rapidly.
• Comments too fast.

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3. Auto-moderation in subs

Per-subreddit automod

• Sub-specific rules.
• Keyword filters.
• Account age requirements.
• Karma requirements.

Post + automod interaction

• Post may pass spam filter.
• Fail subreddit's automod.
• Mod must approve manually.

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4. "Removed by Reddit filters" recovery

Step 1: Identify

• Post shows up in your profile.
• Not in sub feed.
• Message or indicator of removal.

Step 2: Contact subreddit mods

• Mod mail the specific sub.
• Politely ask for manual approval.
• Mods can override filter.

Step 3: Often resolved

• Mods approve most non-spam posts.
• 50-80% approval rate.
• Varies per sub.

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5. Preventing spam filter hits

Clean bio / profile

• No OF links in first 60 days.
• Varied content types.

Domain choice

• RedGifs > direct video hosts.
• Reddit-native image upload preferred.
• Avoid URL shorteners.
• No commerce-flagged domains in links.

Cadence

• Space posts 2-4 hours.
• Don't batch-post same content.

Sub rule compliance

• Read sub wiki fully.
• Respect karma / age requirements.
• Format posts per sub rules.

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6. Domain flag list

Known problematic domains

• URL shorteners (bit.ly, tinyurl).
• Direct OF URLs in text posts.
• Unknown link-in-bio services.

Reddit-native (safe)

• i.redd.it (native image host).
• v.redd.it (native video host).
• RedGifs (NSFW-specific).

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7. Approved user status

Some subs have approved-user lists

• Manually-added users bypass filter.
• Requires mod approval.
• Perks: faster post approval, higher reach.

Building approved-user status

• Respect sub rules.
• Build engagement genuine.
• Mod mail asking for approval sometimes works.
• Per-sub only.

See Guide 25, Mod dynamics.

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8. Cross-posting behavior

What triggers on cross-posts

• Same title across multiple subs quickly.
• Same image across subs (pHash match).
• Same link.

Mitigation

• Space 2-4 hours between cross-posts.
• Vary titles slightly.
• Modify images (slight crop, re-encode).

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9. Comment spam filter

Comment-specific filter

• OF link in comment = instant filter.
• Rapid reply cadence.
• Same comment template across subs.

Safe commenting

• Genuine engagement.
• No OF links.
• Varied text.

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10. New account grace period

First 14 days

• Posts scrutinized.
• Most removed-by-filter situations here.

14-30 days

• Filter loosens as account establishes.
• CQS builds.
• Approvals more common.

30+ days

• Majority of clean accounts survive filter.
• Selective flagging only.

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11. Common recoverable situations

Post removed by filter

• Mod approves after mod mail.
• Recovers in minutes-hours.
• Common workflow.

Multiple posts removed

• Indicates account-level flag.
• Shadowban warning.
• Pause operation + investigate.

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12. Keyword filter awareness

Keywords mods often filter

• "onlyfans" (literal).
• "OF link."
• Specific OF-adjacent terms.

Mitigation

• Don't mention OnlyFans directly.
• Use "link in bio" phrasing.
• Indirect language.

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13. Filter vs ban escalation

Filter events

• Single post removed.
• Comment removed.
• Sub ban.

Escalation pattern

• Filter → repeated filter → shadowban → suspend.

Stop at first signs

• Reduce risky behavior.
• Don't escalate to prove point.

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14. Image / video host selection

Best hosts for NSFW

• RedGifs (purpose-built).
• imgur (acceptable, declining).
• Reddit-native upload.

Avoid

• Random image hosts.
• Shortener links.
• Commerce-hosted images.

See Guide 10, RedGifs.

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15. Operational rules

1. Removed by filter ≠ shadowban.
2. Mod mail for manual approval.
3. Clean bio first 60 days.
4. Space posts 2-4h.
5. Vary titles on cross-posts.
6. Use Reddit-native hosts where possible.
7. No OF links in comments.
8. Stop escalating on repeated filter hits.

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Frequently asked questions

Related guides

• Guide 6, Shadowban
• Guide 10, RedGifs
• Guide 25, Mod dynamics

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Built from a corpus of real operator discussions across 11 OFM / dating-app Telegram communities (2024-2026). Usernames anonymized.