Threadkiller is a bot designed to keep all messages in a group inside of a reply thread.

To use its features, you may add it to a group!

If given the Delete Messages permission, it will delete all messages sent outside of reply threads, otherwise, it will just notify the senders.

If added to a channel discussion group, it will suggest that senders use the Comment feature of your channel.

If given the Pin Messages permission, it will pin all messages starting with /thread.

Be aware that by using Threadkiller, it might become impossible to forward messages in the group, since messages cannot be forwarded inside threads.