I believe I saw the ad you are referring to, and thought the terms were downright crazy.  Besides the fact that you couldn't see any pictures until you were screened, the process seemed to require giving out personal information and putting down a  deposit.  Even stranger still her reviews seemed to indicate she was a porn star under a different name and of course under that name there she had all kinds of pictures available on the web ... so what was the cloak and dagger for?  I understand the need for screening and safety, but when it goes so far as to rule out most potential clients, I don't get it.   As you said ... it was a easy call to just move on