Those actually aren’t a thing, I think @kewldude007 is thinking of something else. Maybe the titles next to usernames?
If you look in the FAQs, it asks that people not sign posts under the “Keep it Tidy” heading.
Other good topics to peruse:
General Forum Rules (BST has additional rules)
People you’ll see around the forums
Leaders < People who help with the general upkeep of the forum
Admins and Moderators < People who make and enforce the rules (They’re nice people, really)
If you want to learn how to use the forum better, send Discobot a PM with the content @discobot start new user