I think reputation is going to keep down most of the scam artists.

There are a lot of kickstarter projects that never go anywhere because the creator is unknown to the scene. You're going to need some reputation to get the ball rolling. Even the watch guys have a track record.

Of course, it's the scammer with a reputation (think Bernie Madoff) that scares me. But kickstarter addresses that with the social aspects. If someone feels ripped off, they can post about it and the scammer can't hide.