With the ninja-ing out of the way:
Kickstarter is for projects with a significant startup cost. Games are a natural fit for it: the first copy costs hundreds of thousands of dollars to make if not millions, while each subsequent copy is literally free.
Before Double Fine, we haven't seen games actually *funded* by kickstarter. I remember times when $2k was huge. Obviously, the games didn't get made on 2k, they were made on unpaid programmer time, kickstarter money was a bonus. While some of these games got made and are
highly awesome, I don't think it's fair to consider them proof that games can be
funded through Kickstarter.
FTL is a better example, because the money the devs got is actually enough to hire people or be self-employed. However - and this is important - the game wasn't made from scratch after the campaign, it was *improved*. The devs could have spent all the money on hookers and blow and still have a finished product to present to backers. There was no risk.
The mega-projects with mega-people on board will need to pay salaries. While celebrities themselves, once signed up, can work for free and serve as additional insurance against the project running out of funding (because a celebrity wouldn't want to lose face), the grunts will want money or they're out. However, big names will know how to manage funds better than noobs (who forget to count business expenses and get pwn'd by the IRS).
What I don't like (already posted in the neighboring thread, but whatever) is that we see celebrities cashing in on their name without presenting anything. In 2009, potential backers judged a project on its own merits. This is not to say that this particular subset is more risky (on one hand, a fresh project has a greater chance of crashing; on the other hand, involved celebrities will be highly interested in rescuing it), I just don't like it.