V. sent me a PM to express his dissatisfaction with me leaving this topic open. So, now I'm going to try and explain my position as transparently as possible.
When I was talking about annoying persons, I was talking in general. I personally don't find V. all that annoying, he is smart, has a sense of humour, and also contributes in various ways to the Forum. Although I don't always understand what his graphs are meant to say or could say, I appreciate the fact that he's taking the effort to squeeze out information through statistics. If it wasn't for all of that I would probably have banned him a while ago.
Because there is one thing about V. that annoys me, and that's that most of the recent conflicts on the forum had him involved. So obviously there's something going wrong there in the communication. I've discussed this with V., and I feel that he makes an effort to be less belligerent and provocative.
The problem is people now provoke him because of earlier stuff. That's how this topic came into being (which I jokingly called the 'topic to discuss the beheading of V.' in a private conversation with DungeonMaster

), and so we never seem able to move on.
If I close or remove this topic, people get angry at me for keeping V. on the forum. If I don't close it, V. gets angry and kicks it back on top of the category again (which is no big problem, because few people keep an eye on this part of the forum). I don't want to pick sides and I'm not the forum's policeman. I'm just the janitor!
So, to recapitulate, I'm not banning V. because I like him enough to forgive his occasional arrogance and provocations. But I'm not removing this topic either, because I think people's complaints are legitimate. If those people can just realize that this is the Internet and that we don't have to be friends to be on the same team, and if V. can try to prevent conflicts to happen (because they're not worth it), we can live happily ever after and be richer for it.
This doesn't mean you can't have arguments and lose your temper every once in a while. And it doesn't mean I won't do anything if things get really out of hand. Just don't let it fester. It's the Arctic Sea Ice Forum. Like V. rightly said in his first comment to this thread: