You CAN be silenced from something on forums, but only if its severe. If not, then just a temp or perm forum ban. But of course, they can bend the rules any time.
If you were unfairly silenced no one in forums can actually help you, yes I'm going to tell you to email ata about it as they're the only ones who can lift a silence, believe it or not they do lift silences that are wrong.locking.