I'm still reading this book, albeit slowly.
there are some rather poorly constructed arguments in here. like, in chapter 3 there's this claim that Facebook's news feed was a "highway system" to the web in an effort to explain "context collapse" and the dissolution of online communities through a "flood of newcomers". Facebook's platform is irrelevant to how open source software development evolved though. Even as an analogy to GitHub, it doesn't work because GitHub isn't like Facebook when it comes to how's communities use them.