Thread Prefix

[ZiNgA BuRgA]

XThreads doesn't support searching at the moment (there's some difficulty with fields which may not be enabled across all forums).
MyBB's thread prefix system can be searched.

Interestingly, it appears that the list doesn't filter out prefixes only applicable to hidden forums (there is some permissions filtering, but one would think that it's a bit whack since it just filters out what the current user can't set, not what they can see).
http://community.mybb.com/search.php - don't recall seeing [recruitment] [status] or [away] appearing - wonder if it's used in some staff forum lol...