LogFAQs > #979945421

This seems like an ad rev/monetization decision. Advertisers tend to be a bit iffy about user-generated content, so this is the heavy-handed approach to appeal to them. It's easier to guarantee your advertisers won't risk their ads appearing next to a psychotic political post if you just don't allow politics at all (or "hornyposting" lol).

GameFAQs likely drives so little revenue compared to the rest of their content that it's more of a liability than anything else to Fandom.