Really? The main source of revenue (GitHub.com) isn't open-source either, companies are free to promote open-source whilst being entirely closed and proprietary

Really? The main source of revenue (GitHub.com) isn't open-source either, companies are free to promote open-source whilst being entirely closed and proprietary, GitHub releases almost everything freely, and encourages the same – there's no hypocrisy that I can see. There are some reasons that not everything is open-source here: http://tom.preston-werner.com/2011/11/22/open-source-everything.html http://tom.preston-werner.com/2011/11/22/open-source-everyth...