Niobia, your IP address isn't protected under privacy laws, since it doesn't belong to you. It's no different than your Alla screen name, which also doesn't belong to you. And if this tard is making personal attacks and threats against Kaolian, in my mind he's asking for personal attacks against himself. Though I agree, a better way to deal with it would be to contact the school he's posting from and threaten legal action. The school would quickly see to it that he can't access their computer labs anymore, as I seriously doubt they'd want anyone using their internet access to make attacks against other people.
And what is your issue? MUST you argue and ***** against everything that everyone posts? I have never once seen you post anything at all akin to "Yeah, you're right about that". Your sole purpose on these boards is to stir up trouble. I'd love to see the admins ban you.