Are we not even going to talk about how many of their sites/wikis are filled with fake/misinformation and go to great lengths to document completely non-existent things in a way that isn’t always obvious to outsiders?

I don't know how specific that is to Fandom but I am aware of at least one Fandom Wiki for an obscure old console game that's like 50% inexplicable unmarked fanfiction.

Right and you don't know if it's an ubuntu deb or a debian deb. I seem to recall that being a pain point, and having to figure out what packages had different names to resolve dependencies... good times.