Ok here is what i think you should make. Under someone's username on a forum they have like Member, Juniour Member, etc..and like can u make it for the admins to add something under that? for ex:
Pimpjuce10
Junior Member
text for admins to add here

Pimpjuce10 would be the username
Junior Member would be depending on posts.
text for admins to add here - Admins can add anything for the member here.