Both this piece, and most commenters, seem to miss the point about where Github's value comes from. It's not for being a social identity for programmers, or hosting open-source libraries. Those are worthy pursuits, but from a business perspective mostly serve as marketing. Github is basically Microsoft Word for programmers, and is an essential part of their workflow. Companies that need enterprise functionality aroun…
I agree, in fact, I don't understand why it's only valued at $2B, when a platform with no monetization model like Instagram was valued (and sold) at $1B.
people expect advertising on a social network. if github started doing that, developers would throw a shit-fit and bail