It's about time he was banned. This forum does have a problem with troll accounts, worst I've seen on any forum.
I don't really mind when he sticks to 1 account, some of his material is funny.
The reason people can avoid bans here compared to other places is that on average most users here are more intelligent or tech savvy than on other forums.
People here can use Tor or proxy's.
I guess your average forum's banned users will just sign back up with the same IP & be easily detected.