I remember getting Spencer2015 banned from Tezuni's servers for using wallhack. I was a moderator at the time (only capable of banning 10min at a time) so I just kept banning him until someone joined who could finish the job for me. I became suspicious because he kept finding the player ducks at Tezuni's Duck Hunt server, and he claimed to be using wallhack. I told him that I didn't believe him and he sent a screenshot of him using it in spectator mode at the Prison Escape. I'm pretty sure he was banned from Kong123's Death Race for the same thing, although I don't see how wallhack would be helpful there.