Sorry that I haven't been playing recently. But yes, the bounty hunters guild only has a few official members, and it is not open for anyone to join. We only hire the best.
I am the leader, and these are the current members:
Golem -- Leader
Plague -- Co-leader
DarkMonkey -- Mercenary
BanderaIVVI -- Silent Hunter
Ephialtes -- Gung Ho Fighter
Snot -- Crazy Killer
Missing in action:
Cazzeh -- (gone for long period of time)
Otis da Houskat -- (banned from AoT)
We also (as dark pointed out) work for money, and don't care about good/evil/cops/robbers.
Hope that helps.