Here is a list of all the posting ranks you can get here at CompuForums:
Please note, since this thread was first posted the ranks have changed. Scroll down for more info on the new ranks.

Newbie (Minimum Posts: 0) 1 star
Junior Member (Minimum Posts: 10) 2 stars
Member (Minimum Posts: 50) 3 stars
Senior Member (Minimum Posts: 500) 4 stars
Addict (Minimum Posts: 1000) 5 stars

Special ranks:
Moderator - 6 stars, dark red user name and "Moderator" tag.
Administrators - 7 stars, dark blue and italics username, and "Adminstrator" tag.