How hard would it be to make a customizable field, that could be editted by the admins of a board, to contain a custom posting title? (Instead of being limited to the 4 posting titles Administrator, Moderator, Member, Junior Member.)
I think on vBulletin, the Administrator can set a user to a certain title, and it'll show up instead of the stock title.
I'd say that if there was no info in the custom field, have it revert back to the stock 4 fields. If there IS a title in the custom field, have THAT displayed instead.