I use FB for genealogy, because there are a lot of local groups where people post historical pictures, and older people in general are more active on Facebook.

I've seen some local groups taken over by ragebait slop, though. Ironically, not even right wing rage bait slop. As far as I can tell, it finally boiled over for the admin of the page, who was a fairly liberal guy in an extremely rural place, when a local museum found out he was anti-Trump and stopped collaborating with him on local history (maybe for fear of other's reactions). Since then he's strictly reposted rage material from other places/people on Facebook, much of it clearly low effort/AI generated.

I can't judge him, he lives there after all, and from this side of the ocean my political sympathies are definitively closer to him than to his enemies. Still :/