Who controls glibc?

I don't get why the FSF is even brought up here. The FSF doesn't control GNU any more than GNU controls the FSF. One is an independent incorporated foundation, the other is an operating system, and an independent non-incorporated operating system development project. Richard founded and presides the FSF, and he's also founder and leader of GNU (Chief GNUisance), and he's also the founder of the Free Software movement, and more.

Saying the FSF has ultimate power to appoint and replace maintainers of GNU projects is not true at all. That who appoints and replaces maintainers of GNU projects is the Chief GNUisance. The FSF has nothing to do with it.

The FSF manages copyrights over some GNU projects, publishes software licenses used by most GNU projects, but it doesn't control GNU.