It's possible and even likely there's industrial espionage going on. But imo, you don't need that. I've worked in cutting edge industries, and even when you don't know what your competition is doing, there are usually only so many logical next steps.

This. / Who remembers the "birth" of crowdfunding? Why did so much seem to happen at all once? The most likely explanation imo is that it was "in the air" -- we share culture and ideas. These ideas don't have to be stolen to co-occur... quite the opposite.