Brave Little Hitachi Wand

It’s not federated, but something like BookStack could be an option for self-hosted collaboration.

The people who made phpBB didn’t, so far as I know, have teams of behavioural psychologists gaming out how best to sell us ads and waste infinite amounts of our time.

I super agree, would rather have one decent regular than a thousand average redditors who don’t fit the vibe around here