Why are people quite so bothered about BBers? I'm sure every working girl has had unprotected sex at some point, probably with multiple men in their lives even if not through their profession. Surely as long as you're wearing protection it won't make much difference if they do with every man they ever get with?
Because it demonstrates a careless attitude to sex and health on her part. No doubt, she is being barebacked by somebody, but that is differnet to barebacking her clients daily, whom are largely untested as she may be.
It's a risk/reward game, condoms will prevent things like HIV transmission, but the other STD's are skin to skin and easily transmissible. If a girl is freely barebacking, then it makes you wonder why and what she may be carrying.