"Once we hit 100 members, we'd see 10 violations a week (slurs, ads, scam DMs). Banning them one by one ate into my actual job."
Operationally, once member count crosses the 50-100 range, moderation burden grows faster than reply burden. Slurs, external promotions, floods, spam, new-member DM scams. This guide breaks down 7 automation workflows + Replyer's reply-side moderation assists.
The 7 Automation Workflows
1. Keyword Filter
The basics. Register a dictionary of slurs, insults, ad keywords → auto-detect → notify operator or auto-delete. Dictionaries typically 200-500 keywords + URL patterns. Limitation: variant evasion (spaces between letters, special characters) bypasses easily.
2. Regex + Pattern Matching
- URL patterns -
https?://,t\.me/, social-platform URLs - Phone patterns - locale-specific phone-number regexes
- Flood pattern - same message 3+ times within 5 seconds
- Obfuscated-slur patterns - character-decomposition + symbol-insertion regex
Limitation: writing and maintaining regexes is high-effort.
3. LLM-Based Semantic Analysis
Solves the fundamental limitation of keywords and regex. "Is this an ad?" → semantic classification, slur intent distinction (joke vs serious), indirect ad framings. Replyer's reply-automation LLM infrastructure can be repurposed for moderation - trigger only when other signals (URL, keyword partial match) flag suspicion.
4. New-Member Quarantine
80% of spam and impersonation happens within 24 hours of joining. Restrict message permissions for 24-72h after joining, auto-queue URL or phone-number messages for review, analyze profile photo and name patterns.
5. 3-Strike Warning System
- 1st violation - delete message + 1:1 warning DM
- 2nd violation - public warning + 24h message permission restriction
- 3rd violation - ban + rejoin block
The 24h restriction is the active ingredient - it signals "this is a real warning" unambiguously. Compared to warning-only ops, violation frequency drops significantly.
6. Ban + Rejoin Block
Telegram user_id block (bypassed via account switching), phone-number block (same number rejoin → auto-block), site-domain block (same destination URL).
7. Integration With Reply Automation
The most important workflow. Moderation and reply automation should share infrastructure to be effective.
- Reply automation's language-ratio gate filters foreign-language ad spam
- Reply automation's forbidden-phrase post-processing prevents the bot itself from producing bad replies
- Reply automation's hourly cap prevents floods of bot replies to flood patterns
- Activity log unifies moderation and reply analytics
Replyer's Moderation Assist Functions
Moderation Tool Selection Guide
| Member count | Recommended workflow |
|---|---|
| Under 50 | Operator manual moderation |
| 50-200 | Telegram built-in permissions + manual keyword filter |
| 200-1,000 | Dedicated moderation bot (Group Help Bot, Combot) + reply automation (Replyer) |
| 1,000+ | Pro moderation bot + LLM assist + reply automation |
Deploying automation too early causes (1) insufficient training data, (2) tonal mismatch, (3) false positives (legitimate members banned). The 200-member mark is the decisive timing for moderation automation.
Frequently Asked Questions
Q. Can keyword filters block slurs?
Direct expressions ~80% blocked by basic keyword filters, but variants (character decomposition, symbol insertion, emoji substitution) account for 20-30%. Start with keyword filters; escalate to regex + LLM semantic analysis. Replyer's language-ratio gate and forbidden-phrase post-processing only apply to the bot's outbound replies.
Q. Can I block 100% of external ads?
URL pattern + phone pattern regex + LLM semantic analysis combo achieves ~95% block. 100% is unreachable. Realistic target: 99% block + weekly operator review. New-member 24h quarantine alone filters ~80% of ads.
Q. Doesn't new-member quarantine hurt signup rate?
Signup rate drops 5-10%, but room quality lifts so much that 3-month retention rises 20-30%. During the 24h quarantine, members read guidelines and absorb the room's tone, so post-quarantine violation rates are lower.
Q. Can I handle moderation and reply automation in the same tool?
Replyer is a reply-automation tool - moderation is auxiliary. Full moderation (auto-ban, flood detection, new-member quarantine) is better served by dedicated bots (Group Help Bot, Combot) running in parallel. No conflict - moderation bot owns message policy, Replyer owns reply generation. Clean separation of concerns.
Q. What if a banned member trash-talks me in other chatrooms?
Don't respond. If the ban was justified, you don't need to defend yourself, and engagement escalates the dispute. Announce the ban reason once clearly to your room and then go silent.
Next Steps
- Download Replyer, 5-minute install
- Persona prompt writing guide
- First-month traps guide
- Chatroom stability psychology
Reply automation and moderation automation solve the same problem (operator burden) from different angles. Deploying both around the 200-member mark is what prevents your day job from being eaten alive.