The moderators on this forum have been removing this same message for the last 5-6 months. It very rarely remains online for more than an hour as the moderators are vigilant (as much as possible).
Things will be changing shortly which will hopefully eliminate this but in the meantime, if you spot one, just click on report to moderator which is at the bottom of every post, and it will notify the moderators with a very clear flag.
The moderators do respond, by quietly removing the offending post, and generally don't reply to the reporter, otherwise would spend ages responding to each and every report. But rest assured, the Report is received and acted on and is very much appreciated by the moderators.
Patrick, the user is now ban I guess he would create a new account.
Bob, It is plan to migrate the forums to a more powerfull tool like phpBB3. I have to admit, that at the time we haven't done enough testing yet. It would take a bit longer, but is something we must do. If anyone with expirience want to help, please email me to the email address in my signature.