Comment by bob1029
Targeting perfect fairness in a multiplayer video game with arbitrary latency between participants is a waste of energy. A much better target is to make it feel like no one is cheating. I don't really care too much if someone is actually better or worse than me at counterstrike. What I mostly care about is wildly implausible gameplay. No one is going to stop the guy who is getting a 5% gain on his ELO by using a 2nd computer, machine vision and a robot to move his mouse ever so slightly faster than he typically can.
However, there are ways to detect when someone is being an absolute madman with the hacks. We're talking head snapping through walls with 100% accuracy and instantaneous displacement across an entire 30 minute match. These people can simply be banned immediately by hardware/steam ID. We can write basic rules to detect stuff like this. There's no "confidence interval" for speed hacking through a map and awping the entire CT team in 3 seconds. You certainly don't need kernel drivers.
Or entire lobbies filled with bots with the same name that stand around doing nothing while one of them goes full spinbot, and auto kicks anyone who happens to join their lobby. Those bots I see week after week with the same accounts and no bans in sight.