Well, if a thread is interesting I would reply to it, but if someone starts debating by just repeating the same opinion and not bringing anything new or constructive to the table, I would stop debating with them. I have to say that I don't think Uziriel was attempting to troll the thread, he had a new argument in each of his posts, and he did not jump on people either. I would find it very strange if a person is not allowed to post in a forum or called a troll just because they have a conservative view of women and men, a negative view of the Muslim religion, negative of Christianity, negative of none religious people or whatever.
By this way of thinking we could probably find a reason for everyone not to be allowed to post. Diversity is good for a forum and for debates, without it there would be no debates. I think there is no reason for it to be allowed to directly insult a person by saying "You are a fu***ing idiot" this could trigger a warning. But to some people it might be insulting when you are debating, and you ask them like "Well, you are debating that people should not eat meat, but how about yourself do you eat meat?", I think if you are in a debate you have to accept that people might question some of your personal views as part of the debate. Or takes scenarios like "what if it happend to you"