The Linux kernel is at the center of the Linux ecosystem. The Linux ecosystem has many Linux distributions based on the Linux kernel. Words are flexible, and language has tools to deal with confusion.
> The Linux ecosystem has many Linux distributions based on the Linux kernel.
There are many operating system distributions that run the Linux kernel. But something like Debian/kFreebsd or illumos are in many ways quite similar to other distributions like Ubuntu -- without running on Linux.The Linux kernel is a tremendously important piece of the Free software world we live in -- but it isn't a userland -- and I don't understand why people that actually understand the difference gets so worked up about it.
The GNU userland is important. The Gnome project is important. Xorg is important. The Apache foundation software is important. I don't see why people insist on labelling these things "Linux".
The GNU name actually makes sense: GNU's not unix. But it's close. You can compile GNU software and run it on Microsoft Windows. Or under OS X. GNU is a platform. Sort of.
Edit: GNU would get more attention if the FSF partnered with major Linux distribution vendors to give GNU a prominent placement in installers, documentation, and marketing. RMS peeing a line at the unmarketable "GNU/Linux" is only going to alienate people.
And hopefully it'll work better than this: http://www.engadget.com/2007/05/29/linux-car-first-to-crash-...