Here you go, Selinde. From the mbs FAQ:
What are user titles?
Each registered member has a title that reflects his or her "rank" on this board. Administrators are given the title "Editor in Chief". Moderators are given the title "Section Editor". Some members are given special titles by the administration. All other users are given their titles based on the number of posts they have made:
Posts Title
0 Cub Reporter
50 Merriwether
100 Kerth
300 Pulitzer
So, get posting if you want to be promoted.
LabRat