But that depends on who you think Kickstarter is ultimately serving. I'm pretty sure Kickstarter cares more about the funders than the products that get displayed. This seems patently true, though obviously they need some people to post projects. But the number of people looking for money is always going to be non-trivial.

Second, if that is the thesis, it's silly. We learn more from success than from failure http://web.mit.edu/newsoffice/2009/successes-0729.html; http://hbr.org/2010/01/success-gets-into-your-head-and-chang.... And you can see all the successful projects you want.