Ohlala, An Uber For Escorts, Launches Its ‘Paid Dating’ Service In NYC

http://techcrunch.com/2016/02/03/i-only-downloaded-it-as-a-joke-honey/

It's popular in Germany

also they need to incorporate some elements of tinder such as approximate distance between provider and the potential client

END OF MESSAGE

IF you read the article you would see the following:

"Once a male user puts in a request, which includes such subtle romanticisms as hours needed and desired price, the inquiry has just 21 minutes to be accepted by a female user in the area before it disappears into the erogenous ether.

If a request is accepted by a female user, the pair then have the opportunity to negotiate a bit on pricing and time before settling to meet offline."

This is were she can ask for screening information, and anything else.  
Yes I would see who it would be crazy to just go in blind,

and besides, once a person responds to the "bait", you're toast if LE is on the other end