...because there's been cases of this towards me and now other commenters. If you are just here to insult other people, you're going to have your comments removed.
If you are making a substantive point that you've just gotten worked up about, that'll probably be OK. But if you're just here to be a jerk, you're not going to be allowed to stay here.
Also try to remember not to comment anonymously. Pseudonyms are just peachy.