While no, there's no proof he is hacking or using Nodus, Prod and I have caught him using some kind of mod that allowed for an instant teleportation the moment he took damage, allowing for a one way mirror-esq unfair combat advantage. Also, for a time, he was also invincible and able to hit other players, but since he was not moving other than a one directional punch, it seemed to be either an afk bot or at the cost of it disabled movement. Kicking him seemed to deactivate the effect, so there may not be a problem there.