Except for the fact that pure open source projects without backing of such big commercial companies often die after the developers lose interest or the time to maintain it next to their commercial jobs to make a living. Not that it can't be done but it definitely cannot be the only way to do it.
Closed source projects die too. G+ anyone? Internet explorer?
But it does not change the even big open source projects are struggling, for example, Docker, and Docker is a big one.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.