Reading post and website text will often help you discover who the "classy girls" are. Or at the very least, those whom have similar style and taste as yourself.
I for one, blur my face for discretion even though I believe my face is one of my better features (wicked sense of humor, my best).
I don't do free of reduced M&G type dates because I often have to travel, pay babysitter, take time away from other work, and other cost associated with looking my best for our date, that my full rate must apply. And I occasionally receive my full rate for dates without any private time.
I used to offer a money back guaranty. I advertised that after the first 15 minutes of our date, if either of us wanted to backout, I would refund 90% of the donation that I collected upon meeting. My starting rate was $2000 and some naysayers started accusing me of running a scam to get $200 for 15 mins of my time. Well, I must say not once did a suitor backout and ask for his $1800 back and I only declined two but gave them the entire $2k back because I could tell we weren't compatible and our personalities would not make for an enjoyable evening.
As far as references, I find that I don't need a list of "whores" but one or two girls I know and trust. I really only need one, but in the case that I can't get a returned email from her, a second one is helpful.
If you don't have a reference, then I can verify you through your office. Before P411, I used to have to call the gentlemen I saw, at their work to verify who they were. And yes, I said "gentlemen" because most of the men I see truly are.