Providers on dating sites

I'm on several dating sites, and occasionally I run across a provider. Today a girl hit me up and immediately asked my number. She started sending nudes and said nothing was for free. Quoted me $200 for Full Service with Greek included for two hours. Said she had a safe incall in Pearl. My question is, is this becoming commonplace among providers? Could it be a sting? Other thoughts?
Dating websites do NOT condone that kind of thing. I would be leery of anyone who just comes right out and TELLS you rates and "menu" items.
If she does that to the wrong person, she will get more than she bargained for. And who knows, it could be LE doing some "fish"ing.