Marten, that is such a personally invasive question. Why would I ever cop to being a lawyer?
I apologize if I was too blunt, but there is a danger in over thinking this stuff and it deflects from the basic rules of knowing who you are dealing with, not discussing sex acts and money over the phone, or in emails and looking out for ads that seem out of the norm.
Please tell me if this new found, but simple, wisdom helps you identify LE ads. Remember, no nudity allowed.