Well, github can do that too. You can set up an organization that isn't tied to any particular account and manage repos from there.
Projects start out as one person messing with code. Of course the project belongs to one person at that point. As more people join in you can re-structure the project into an organization with multiple owners.
The problem is that GitHub has no way to point the original project to the official project. The new organization project will still say "forked from" the original person's project.
Projects start out as one person messing with code. Of course the project belongs to one person at that point. As more people join in you can re-structure the project into an organization with multiple owners.
Check out the announcement from June 2010 https://github.com/blog/674-introducing-organizations