The underlying problem is that GIT was never meant as a centralized scm. A centralized source control system will never lose changes, even if one of the users m

The underlying problem is that GIT was never meant as a centralized scm. A centralized source control system will never lose changes, even if one of the users messes up. This means that it distinguishes between normal committers and 'admins'. Only admins can do irreversible actions. Git uses local, cloned repositories and users can do everything they like with them. Changes can be pushed and pulled to other repositories, possibly changing them irreversibly. By using github you use GIT in a (kind of) centralized way. Suddenly there is an 'central project repository' again, that needs to be protected against damage. But as GIT was never meant to do this, and trusts its users, it has to be bolted on somehow... at least, that's how I understand it. I hope they will get this right as it's very important for accountability.