Comment by dreamfactory2

Not meant as anything but constructive observation - but not open sourcing the core means it could be seen as another closed platform play, with open source plugins being used as a way of getting free features. My guess is that if this idea is compelling enough to get traction, a FOSS version would emerge in any case - for reasons of privacy, price, technical roadmap ownership etc. and the real money would be in offering services and products around that (I'm thinking Wordpress/Automattic). It's an obvious pov and I could be completely wrong of course :p (I guess IFTTT is the counterexample)