That is exactly why I hesitate to commit any of my money to Kickstarter projects except for a very select few. It's not that the developers really have an intention of 'running off' with the funds and never delivering what they promised. More so that game development is a tricky business involving numerous technical people that can't always be easily replaced. Projects get complicated, bugs surface that seemingly have no solution, programmers and artists that were key to the project up and leave for whatever reason. I expect quite a few of these projects to raise the money but not deliver much of anything. I hope the backers don't get too bitter about that, because it should be expected.