It looks like I just got burned on an Indiegogo project myself (https://www.indiegogo.com/projects/zaptip-the-world-s-first-...) - I was aware of the risks, but the product was "just" a cable, so I considered it low risk. I had previously participated in a couple of other Indiegogo projects worked out wonderfully.

The worst thing about my IndieGogo Zaptip failure is that there are now tons of ZapTip knockoffs already available through Amazon, eBay and other channels, and at lower price than what I paid to fund the Indiegogo project.

Indiegogo is where projects go when they're too shady for Kickstarter. They're much less willing to give the boot to scammers and actively welcome projects that have been kicked off Kickstarter.