Unfortunately you're right. "Gamers" are a fucking wierd bunch, they'll send death threats to reviewers who dare not to give "their" game glowing reviews. The one you mention had "gamers" literally replying with GIFs and videos which could trigger a seizure.

I use gamers in quotes because it's obviously not every gamer who does abhorrent stuff like this but it is certainly an issue within the "gamer" community.