Why is this even a debate? Nine bans, plenty of chances, obviously has no intent of doing anything worth while.
Just because he "can be banned again if he does something" doesn't mean that he should be allowed back on to begin with.
Just because the ban reason may be incorrect doesn't mean that the ban isn't rightfully served for various other reasons.
Just because he's funny doesn't warrant anything other then what his actions have already provided him, which is 9 bans.
Giving someone a chance is completely fair, it's the only reason I'm still around, but after nine times you have to wake up and realize that said person has no place here. There have been far worse cases that only got one or two chances before they were completely removed from the community all together.
I get it, he's funny, I personally get a good kick out of intercom spammers and the likes, but that doesn't warrant the inevitable reban he will likely receive.
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