I advertise on BP. I don't agree with providers using fake pictures and doing bait and switch operations though and I DEFINITELY don't agree with girls who let pimps run them. That is just really sad. =(
When you call a lady off BP, you might say something like, "Are you the girl in the photos? I'm only interested in the exact girl in the pictures."
THEN, if she comes over/you go there and she's NOT the girl in the pictures, just deny her entry/leave.
Bottom line, you don't have to do anything you don't want to. It's your $. Spend it how you want to.