TL;DR: The use of the word "Linux" on this site is unclear.
See the answers for what to do about it.
The GNU/Linux naming controversy is an issue that has surprisingly not been brought up before on meta, so many people might not even know how ambiguous "Linux" has become this millennium. For people who haven't heard of it before, I have provided a summary. You can skip the following paragraph if you already know what it is.
The GNU operating system began development in 1984, so that the *nix goodness could be free for all. Lots of programs had been written, but the operating system was still missing a kernel. In 1991, Linus Torvalds created a kernel which he named Linux, and packaged it with GNU shortly afterwards. People started using this new system, and it soon became widespread, along with the name "Linux" which to many people referred to the operating system as a whole. But other people are cross that the whole thing is being called Linux, because Linux is just a single, small (albeit important) program in the entire operating system. See Linux and GNU for a longer explanation (from one point of view) and Wikipedia for more information about the conflict (at time of writing slightly biased towards the other).
The word "Linux" is ambiguous. Most people use the word "Linux" to mean GNU/Linux (the operating system / kernel pair), but this usage is not consistent, even on this site alone.
This site is called Unix & Linux Stack Exchange. It would be silly to try change that, even if there was majority consensus, and that is not what I am asking.
The first sentence of the tour page is as follows (emphasis mine):
Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems.
This is confusing. "Linux is the name of a kernel, isn't it?", new users could think. You might consider this nitpicking, as the word "Linux" obviously refers to the operating system when it's right next to the words "operating system". But let's have a look at the linux tag wiki excerpt:
These questions are about Linux in general -- NOT specific to a particular distribution. If the question just happens to be in a Linux environment, please specify your Linux distribution in the body of your question, but do NOT use the /linux tag.
The tag wiki itself is fine, but the excerpt is not. Nowhere does it make it clear that it's referring mostly to the GNU operating system part, and not the Linux kernel (the part that's actually called "Linux"). Replacing the first sentence with:
These questions are about the Linux operating system in general
or, more "correctly":
These questions are about GNU/Linux in general
if you want to exclude pedantic people claiming "this means that Android's on-topic" and the like.
To avoid the standards proliferation issue, I have decided to limit my suggested solutions to the three most obvious ones. I do not necessarily agree with them all, especially as they contradict each other somewhat.