again, there is a cheat detection for speedhacks. They sometimes give false positives though, so that's why Jitspoe waits for the confirmation that someone has been cheating (read: demo).
Watch banlist, if we make cheating harder, less bans. And more time to development. I think good anticheat, try to catch less irritating cheaters and just tell them 'wrong way'. If someone tries to omit user side anticheat, then server anticheat goes on, and global ban incoming. Client side anticheat doesn't care about lags/internet problems. We can clearly say, that if on someone PC 1second is less than 900ms, then something is wrong, so just disconnect from server. Good anticheat tries to kick simple cheats rather than forcing Jitspoe to check demo, find IP, get global data and add ban. So he could develop more.