Probably get some flak here,
but I see the occasional WGs who do advertise BB, though I do wear a condom when seeing them. I mainly go for watersports which I really enjoy, and some of the girls I have seen are quite good at it. I think I would have missed out if I was so fussy.
I believe there is little difference in risk between seeing one of these girls and picking up a stranger in a Blackpool club or bar. You don't know the history of the girl in the bar, but a great number of WGs get themselves tested regularly, which you can't know for certain with civvies. I have spoken to young girls I work with, some of whom see me like a father figure, who've admitted they have never been tested yet also admit to picking guys up and having unprotected sex.