[Suggestion] Ban system by Hardware ID/Serial

[Jimmy]

What if its a shared computer?

Nothing a little customer support won't fix. With many things like this there often can be false positives, but it is important to simply add a friendly reminder saying "If you aren't aware of having been banned from this server for a particular reason, please contact: " or something along those lines.

Okay, lets say 2 bros play on same PC. One got banned for hacking from MAC. So, now second bro will also not be able to play. What he does is, he contacts server staff to get him unbanned. So the staff unbans the MAC address. Now, even the first brother who hacked originally can play too! Its a never ending problem. Banning from MAC can never be a reality.