Great blog post jacob. Thanks for the read. To Daleks point on aligning incentives I think this is crucial to the success of any crowd-sourcing platform.

One of the things we are doing at Algorithmia.com is trying to provide a lot of the value add around the source code, so that the source itself can remain open yet paying users still have a reason to come to the platform (and the algorithm developers can get paid).

I think doing this is possible in almost every crowdsourcing platform the trick is to find those value adds are. Its on the platform creators to build something that is worth paying for yet still allows being open with whatever it is that you are crowd-sourcing - data, code, etc.