How is that open source? There’s not a single line of code. No CAD. Nothing. Sure, there’s a “coming soon” CrowdSupply link, which I guess is more than a KickStarter. But open source?
Fair enough but I trust CrowdSupply to keep them in check. I bought quite a few projects via CS and never been disappointed. They have too much trust from the community not to follow up, it's their most important differentiator versus KickStarter and other crowdfunding platforms.