Popular unmaintained projects on Github are a real problem. There's really no solution other than disgruntled users creating a series of unrelated forks.
I believe Github could easily track the number of open issues, closed issues, and number of stars to determine if a popular project is no longer being actively maintained or attended to.
In the event a project is no longer being maintained, Github should recommend that the admin switch the repo to a free organization account and add some of the top contributors to the team.
I believe it could lead to higher quality (and better maintained) repos. The net benefit being the entire programming community wins.
Anyone have thoughts on how a flow like this could be implemented?