I don't think it's really a chicken/egg here. If you could instantly solve the problem of having lots of entrepreneurs posting that wouldn't necessarily create

I don't think it's really a chicken/egg here. If you could instantly solve the problem of having lots of entrepreneurs posting that wouldn't necessarily create any value for potential users (beyond app discovery, which there are better places to go to discover existing apps, not just potential apps). What's in it for the user giving me feedback on my app idea? You could pay them, but then that would make it really expensive to run and end up with people gaming the system with low-quality feedback. The best thing I can think of (and I'm not sure it would work) is to have the developer pledge, say, 20 promo codes to you. Then if someone reviews the app idea, they get the promise of a free copy once the app was released. I would be willing to do this, but I know other developers are more reluctant than me to part with their promo codes.