Theres many many issues with this. First, barrier is to high. I'm not mailing you my drivers license or giving you my work email, I'll just head over to craigslist. You have a chicken and egg problem, which one are trying to solve first and how are you going to solve it. Interface is simplish bordering on very amateurish. If you want people to take you seriously spend some money on design. You've built something, but haven't give one good reason why to use it. No way you're going to be craigslist with something like this. best of luck