hey if a guest hacks wouldn't they be invincible from a ban?
No, how? If they have anti-ban then creators will use anti-anti-ban and then players make anti-anti-anti-ban and so on. An example is ad-blockers. People have developed anti-adblockers. And players have developed anti-anti-adblockers. People have developed Blockanti-anti-adblock. (Not sure about the names)