1). Redirect them to the right place if their new, if they do it again, infract them.
2). If you just ban/infract them, how will they ever learn what they did wrong and how to improve on it without some simple redirection?
Stickies should also stand out more, change the color to bright titles or..If you have cleared cookies (new users) when you first visit Sythe, show a small TOS and the first things to do before browsing the forums.