Here is the principal reason for his banning:
11. The act of intentionally posting inflammatory threads or replies for no other purpose than inciting or provoking others, also known as "trolling", is strictly prohibited. Mazda Forums has a zero tolerance policy towards trolling, meaning users who engage in such activity can be immediately and permanently banned without warning.
Those rules can be found
here.
The thread that this infraction pertains to is the one about the censorship of other forums and websites. Though it looks like that thread has been deleted, he was "provoking others" against the Mazda Forums.
The decision to censor links is not of the Moderators, but of Antoine and the Admin staff. If you have an issue or a question, feel free to PM one of them. Being "inflammatory" won't fix any issues that you may have, it only draws negative attention to yourself.
Remember, this is a free, albeit private (owned by Antoine), forum. If you don't like the rules, you are free to visit and contribute to other forums, but please be mature and respectful to ours.