Agree with most of the points in terms of most developers aren't using the D enough to make DVCS worth it. However, have to disagree about open source development before and after GitHub.
Ironically, it's the centralized user accounts on GitHub that made it really outstanding for open source. Now I don't have 100 different systems each with their own logins and conventions, I just have GitHub and all the myriad projects thereon.
Pull requests are better than patches because they are more explorable (quickly view diffs right from the browser), discussable (make comments on specific lines of code, mention other users), and programmable (webhooks to run tests against pull requests instead of manually pulling and running tests). Those are pretty big advantages.
Ironically, it's the centralized user accounts on GitHub that made it really outstanding for open source. Now I don't have 100 different systems each with their own logins and conventions, I just have GitHub and all the myriad projects thereon.
Pull requests are better than patches because they are more explorable (quickly view diffs right from the browser), discussable (make comments on specific lines of code, mention other users), and programmable (webhooks to run tests against pull requests instead of manually pulling and running tests). Those are pretty big advantages.