Haven't gone through your posts (and I'm far too lazy to do so), but the only real reason anyone ever gets a permaban on this forum is because of copy/pasting.  The only other reason is disruptive spamming, but it has to be fairly egregious for you to get a ban from that--so my guess is that you plagiarized someone else's work somewhere, and I'm also willing to bet that one of the fine forum detectives will stop by to show you exactly what you did.

Did you post someone else's words without giving them credit for it?