Me too. He often asks for corrections in light of these types of oversights (at least, it looks like an oversight to me).
Fedora, i.e. Red Hat, is very distinct from Debian. A Debian software package is not guaranteed to work on Fedora, nor is a Red Hat package guaranteed to work in Debian. Both try to be semi-compatible with each other, but that does not make them identical.
A common name used in the past is "Unix" or "Unix compatible", but then what is not Unix compatible today? We could be talking about Linux compatible, but then, the vast majority of programs will work on BSD kernel as well as Linux kernels, while having stronger compatibility demands on distribution-specific technology. Maybe "systemd" or "systemd compatible" should be the new OS name?
If you tell me the distribution of your OS, it will tell me enough information to make or identify compatible software. What property is more important than that in a name?
http://www.gnu.org/distros/free-distros.en.html
I'm still surprised at how few there are.
This explains why many are not considered free, though the summary could simply be "the Linux kernel contains non-free blobs" and "they haven't promised not to allow non-free in their package repo's"
2) I look into a lot of videos about Emacs.
3) I've noticed that, recently, many of these videos and screenshots are by people using OS X.
4) Someone wondered about an OS X video on the Emacs site.
5) I pointed out #3.
Yes Unix is not Linux, but I see OSX widely used at hackathons and conferences because of its underpinnings.
Obviously the use case in point doesn't come under that though. :)
Yes, it's pedantic, but this GNU we are speaking about.