You know, since there is so much dirty laundry sired out already, I have to say that someone banned my brother on his first post on FR. When I tried to plea his case, the admin Moderaotr freepmailed me back, the equivalent of "tough luck, his post was racist."
It turned out to be the first article posted on FR about the Illegal Immigrant Rights Rally in DC, a topic that has had more than a few dozen articles posted about it since. My brother heard direct from the horse's mouth, a Commie recruiter on his campus, and posted the article with a big "heads up to what's down the road" warning to give the people his brother spends way to much time on the net talking politics with. He was banned in like 25 minutes. You really pissed him off, and set me back after months of trying to get him to think through politics in a clear manner. And I haven't really been able to get him to think about politics since. My final point, Someone banned him for fun.