I need a little bit of light to be brought into this. I'm basically just copying a report I've just made but that's beside the point.
I don't exactly understand your banning policy. I know it's usually pornographic or offensive content. And there have been a few relatively respectable members banned out of the named reasons because they were being offensive often without a serious intention.
Anyway, but what about spamming and flooding? This LOdAt person has been flooding the forums extremely with annoying posts for weeks and always getting away with it. And on the other hand people who flame other members because they actually have a real reason to do so get banned because someone keeps on reporting them. Seriously.
I'm not even going to suggest IP bans. They'd help a lot maybe, especially with the spammers. But I'm not sure how any banning would remain completely objective. Especially after someone keeps reporting someone else just to get them banned because they have a problem with them.
Also what will be the role of moderators in this? Do they get to suggest bans?