Forum groups: yes — Telm moderates messages in every topic of a forum supergroup with the same rules. Settings apply to the whole group, not per topic. Channels: Telm doesn't moderate the channel's own posts, but it does moderate the comments under posts via the linked discussion group, with a dedicated strictness switch. Paid access works for both groups and channels.
1Forum groups with topics
A forum group is still a supergroup, so Telm connects to it like any other group and sees messages from all topics. Spam detection, content filters, warnings and bans work the same wherever the message was posted.
Two things to know: settings and rules are per-group, not per-topic — you can't set different strictness for different topics yet. And the bot's own messages (welcome, CAPTCHA prompts, notices) are posted to the group's default topic rather than the topic where the trigger happened.
2Channels: posts vs comments
Telm does not moderate posts published in the channel itself — those are written by the channel's owners, and the bot doesn't process channel posts at all.
What actually attracts spam is the comment section. Comments live in the linked discussion group, and that's a real group Telm can join and protect: add the bot to the discussion group, and every comment goes through the normal moderation pipeline.
4Paid access for channels
Monetization works for channels as well as groups: enable paid access on a channel, and Telm handles join requests, payment offers and expiry the same way it does for groups.
3The comments moderation switch
Comments under channel posts get their own strictness setting — standard, strict, or off — separate from regular group messages. It lives in Moderation settings (dashboard or the bot's settings menu).
With comments moderation off, Telm stops punishing commenters but keeps observing: comments still appear in analytics and the moderation journal, so you can watch before enforcing — the monitoring-mode philosophy, applied to comments.
Auto-forwarded channel posts that open each comment thread are recognized as the channel's own content and are never treated as spam.