I have often looked at these things and they all seem to require you to join up and pay with your credit card!
I don't trust these sites and always back out when asked for credit card details.
Even in EI they were toying with the idea a few years ago.
I note that there may be some horny singles out there but theses sites don't give location
Could EI get into it - instead of sending pm you could do a chat on the webcam .
So what is the way forward!!