Are you requesting one?
j/k
To be banned...
1) You are brand new and come on the boards talking shit, spamming, or stuff like that.
2) Over time, you repeatedly bother other members, start problems, etc. It is completely ok to have other views on issues. That's what makes a message board tick. If everyone thought the same, the discussions wouldn't be very interesting. Forcing your beliefs on people, resorting to name calling, and stuff like that is what causes problems. These things won't necessarily get you banned though, depends on the severity.
I'm not sure exactly what brought this up, but you can always send a PM to one of us if you need to talk about something.