It would appear, by reading the posts on the WI site, that he was banned more for what went on in PM's with the Forum Owner than his direct actions on the Forum itself.
We should all keep in mind that while we are entitled to express our opinions, we should do so with respect for the sensibilities of others. We can disagree, get mad, blow off some steam, but threats to do harm or disrupt are out of order.
As for the ramblings of this banned party, I just clicked on to another post or topic. Just like the some others that are not banned (yet?).