I wouldn't think it's be very efficient. Kickstarter and Amazon take 10% right off the top. Then you have the public and media issue of when Kickstarters get really big, more people jump on them and the more it's shared. There's a bigger and bigger backlash from campaigns who don't fulfill their obligations, and I'd be willing to bet were close to class action lawsuits for larger ones that don't deliver. It would look suspicious to make a really crappy Kickstarter and have it reach the 500k to several mil mark. Then again I don't launder money, so I could be wrong lol.