It’s embarrassing that huge and ongoing successful games can’t shell out to host official wikis, but instead leave it to the community to either pay out or pocket (not happening) or pick whichever crappy provider they can find willing to host it for ads.
A good wiki needs to have mosly text, a modest amount of pictures, no self-hosted video, and low computing needs. While an unpleasant expense for a private individual, it doesn’t cost a company much to host.