I've added this to the FAQ thread, but it needs to be mentioned specifically here. The poster rankings have been reviewed and new ones are being brought in very soon as follows:

0 = Newbie Poster
50 = Trainee Poster
200 = Keen Poster
500 posts = Active Poster
1000 posts = Persistent Poster
2000 posts = Super Poster
3000 posts = Energetic Poster
4000 posts = Frantic Poster
5000 posts = Manic Poster
6000 posts = Compulsive Poster
10000 posts = Addicted Poster
20000 posts = Accomplished Poster