Fandom probably hosts more copyrighted images and media than the Internet Archive does.

Entertainment studios can often turn a blind eye to use of their properties when it's by fans, for fans, and promotes those franchises. They are not sending C&D to people making avatars, or cosplaying, or memeing their screengrabs into notoriety.

It is weird to think that the WMF and Wikia/Fandom had a common founder and origin.