I like White Russians (just thought I would add some more negative votes to my collection). On topic, I have a forum with about 6000 members, that more or less runs itself. I used to write people and explain the rules and ask them to correct the posts. All this did was create back and forth arguments and drama - "but this guy did it, why can't I?" etc. Now I just delete them - at least the really bad ones - MLM, personal attacks, etc. No explanation, no banning members, I just delete see more the worst offending posts. People don't like having to re-write these things, and this works for me.