From the other side -- Indiegogo is notorious for a number of policies which are friendly to scammers, including:

• Allowing project creators to use 3D renders and concept art to advertise their project, rather than requiring photographs of actual products.

• Making it difficult for users to report projects which are likely to be scams, and failing to respond to these reports.

• Allowing project creators to use "flexible funding" to receive any money donated by backers, even if it did not reach their funding threshold.

As a backer, I treat a project creator's choice to launch on Indiegogo with deep suspicion. While not all Kickstarter projects are legitimate either, the odds are certainly better there.