I have someone who regularly called me ignorant while attempting to debate me. Each point I made he would counter with an argument and and insult like, you are ignorant, a liar, or something simular. I stopped arguing with him after a while cause it gets old. And I snitched on him and reported the posts, which of course the insults were deleted.

I think it really reflects badly on a person's argument no matter how good their argument may or may not be, if they are always reduced to an ad hominem attack (and they probably don't even realize they are doing it).

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We should invade their countries, kill their leaders and convert them to Christianity. -- Ann Coulter