These people are not trolls. Stefan is not a troll.
The point is Jim R. can zot anyone he wants on FR - this is his website. He owns it. He makes the rules. YouTube has the same power on their website. If you think it's government's job to tell Jim Robinson who he can and cannot zot on his own website because, uh, fairness or something, I don't know what that is, but that's not conservatism.