It is hard to be positive about this idea. I think that may be the reason people are reluctant to say anything. No one wants to be a downer. I'll stick to the

It is hard to be positive about this idea. I think that may be the reason people are reluctant to say anything. No one wants to be a downer. I'll stick to the important facts. Take me or leave 'em, but don't ascribe any emotion to them. This has not been done before because it would draw all ages of user, but some people would post inappropriate material. The cost of policing the uploads could prevent it from being profitable. Also, it would be possible to become a mainstream product but then lose that status through a series of mistakes. I could go on at length so in case perhaps you've solved this problem there are others. I'm not saying you can't solve these problems, Twitter is successful because they solved the policing problem by limiting everyone to 140 characters. But there are definitely other problems. Pick a demographic and think how they would view your service. Solve all those problems and you've got a winner.