Kickstarter gets 5% of every transaction on the site, so they (and those who reached their funding goals) are probably the only ones happy.
This video from The Onion (news parody site) hits the nail on the head:
http://www.theonion.com/video/internet-scam-alert-most-kickstarter-projects-just-*******
It is in the best interest of those raising funds to have a great looking page and words to entice investment. Once the funds are raised, Kickstarter considers the project a "success" and YOU ARE ON YOUR OWN if you are dealing with someone dishonest! Legal recourse is hard because it is difficult to prove intent.
The good news is, the FTC is coming after Kickstarter scammers, as evidenced by this article:
http://arstechnica.co.uk/tech-policy/2015/06/feds-take-first-action-against-a-failed-kickstarter-with-112k-judgment/
Stay away!