Posts have to be approved for the same reason some guys go into s.e.x in the first email or chat. Because some people just want to talk about s.e.x and nothing else. After some of the nicknames I've seen, I'm amazed that THEY got approved! And I do agree with the being approved part, but I don't understand why some words are denied, because they just don't make any sense as far as being crude goes.
I have to say that I would hate to see this very nice forum turned into some kind of sicko s.e.x site. There are enough places for THAT to happen. Geez...