What irritates me is when games that don't even benefit from anti-cheat require it. Helldivers 2, for example. My dudes, it's a co-op game. My teammates and I are all on the same side! Moreover, the vast majority of people are gonna play with their friends, not randoms. And if your friend is using a cheat and it bothers you, you just ask him to stop. There's no reason for a game like Helldivers 2 to require anti-cheat at all, let alone the rootkit variety. And yet...