Personally, I didn't mind him. I think at least half of this hate is the Milenko sort of hate, a few people hate him, so everyone else jumps in and beats on him.
Also, if he's already made 3 alts, expect them to keep coming. He won't leave without a fight, trust me. Nobody like him would, I'm not sure how many big people would. I know if I was perma banned, I'd at least make one alt to get everything off my chest. I don't think I'd go as far as Jackie or Lesnar, but I think I'd make a few.
Only if I was perma banned though, there's no point in doing it after a week banning...I mean seriously...what kind of idiot would make an alt when they were only banned for one week!
Alts used to be automatic perma ban, not sure why it is allowed to slide these days. "Well everyone else does it, so why cant he?!?!" is never a good excuse
I used to think the Alt rule was pretty stupid, but then I figured it was something vBulletin requires. But it does help avoid things. I'm sure if making another account was allowed, guys like Coco would have made another just to troll people. I can imagine the guys from like..2007 who'd make copy cats of other people.
It also..somewhat keeps the trolls away. Except the real trolls should will keep coming back anyways. I think the best option is to turn the prison into something where you send guys like this. Or make another section for it...call it Death Row. Just keep them there the entire time, maybe even turn it into another password section. The password thing keeps it off browser searches in some way, right?
As long as these guys don't go making threads like Jackie did when he got banned, I think Prison would be the easiest option for the mods...unless you want to keep banning the next 20 alts he makes today.