Not sure if it’s really that obscure but Picross 3D round 2 is one of the games I have put the most time in to.

Same. I remember back when forums were more of a thing (they weren’t perfect) as were dedicated servers for multiplayer games; both which had their own smaller communities which actually worked well.

I don’t expect Lenny/Beehaw etc to ever get as big as Reddit, and to be honest that’s probably for the best.