Just some ideas @Madmin
When you press "post message" there should be an automatic scan that picks up words/phrases like "rocket ship", "station", "chu chu" etc and the message is automatically moderated.
Also if someone has a moderated post for flaming and baiting an automatic 24hr suspension.
If someone admits to spamming a thread with negativity thinking a bid will get hit they get a permanent suspension - Ive seen posters permanently banned for this before yet in the last month Ive seen 2 guys do it (and admit to it) and nothing happens.
Some way of preventing someone from seeing your posts if you put them on ignore. Maybe have the choice. I put alot of rampers on ignore but sometimes its just to cut down on the reading. If someone attacks me I should be able to prevent him from seeing my posts.
Great site but sometimes it can be ruined by people with agendas.