Recently banned members

[Bighead]

I know it is known of my business, but I have noticed some "senior" level members banned in the last few days.  I know Charon well and know that this isn't the old ioplist where one mistake gets you banned.  I really don't think I need to worry about getting banned because I'm civil, don't engage in flame wars, and follow the rules.  I'm just curious if someone can give a generic answer on what will end up in a member being banned.

Shilling, trolling, flame wars, etc I assume have led to the bannings.  Or maybe a warning was given for a behavior and the person continued that behavior.  Don't feel obliged to answer as I'm kind of thinking out loud.