Hello @ivan@bonfire.cafe, I have been testing Bonfire using this instance as a live environment, and it seems that the alpha .41 has problems threading activities.

If a user posts a reply to another user that's never been fetched, after fetching remote activities the parent reply shows up on the creator's profile but not in the thread.

Also, Bonfire does not progressively backfill context in a thread, nor will it search for new context if no one on the server follows anyone involved.