After reviewing the
last 5 pages of your post history, it seems a bit odd that your account was banned. Maybe it was because every single one of your last 100 posts were in boards that are thought of to be spam attractors? All of the threads you've posted in are megathreads, and anyone reviewing your account can easily use the argument that your posts lack substance and don't contribute to the overall health of the forums.
Maybe there was a post where you plagiarized something beyond your last 100 posts?
I think a staff member could give you a definitive reason, but to me, you're an obvious shit poster.
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Edit: Thanks, @TryNinja, for clarifying that it was, in fact, plagiarism.