All I could think of as I read this was that here were two guys that had figured out a very good way to invest in their own normal behavior (i.e. go out, drink, take phone numbers etc.) sort of a entrepreneurial version of 'getting paid to do something I love...'
"We also used the dating site HowAboutWe.com to go on dates so we had the undivided attention of a female for market research. No judgment; we paid for dinner."
Interesting way to go about collecting market research. Though I have to wonder if some of the ladies didn't resent having a date with your future app rather than you.
My girlfriend tells me about the worst date she ever had. The guy was handsome, well dressed, took her out to a nice place... But it turned out to be a pitch for financial advising!
This kind of bait-and-switch is not OK. I hope that they were very upfront with the girls they took out because despite the fact that they paid for dinner (or were "treated to a full date" as feldon says below) when people go out on dates they expect it to be, well, a date.