You've just got to be realistic when you pledge money for these things, and if it's something that looks overly ambitious or fly by night, don't risk more than you can afford to lose.
The Kickstarters I've paid larger amounts into have all been with established individuals with long track records. A couple of them might have been later than promised, but I was in it for the products and got what I was after (like with Reaper and with SJG's Ogre).
The one 'help me start a company to make miniature tokens' guy I threw $5 at seems to have totally dropped the ball with producing orders for the people who backed his company, and instead is now just selling stuff at conventions, just to pick the only one (out of a dozen) that I've backed that has pretty much failed to deliver to the backers.
The Kickstarters I've paid larger amounts into have all been with established individuals with long track records. A couple of them might have been later than promised, but I was in it for the products and got what I was after (like with Reaper and with SJG's Ogre).
The one 'help me start a company to make miniature tokens' guy I threw $5 at seems to have totally dropped the ball with producing orders for the people who backed his company, and instead is now just selling stuff at conventions, just to pick the only one (out of a dozen) that I've backed that has pretty much failed to deliver to the backers.