Comment well technically ... (Score 1) 521
In a "fair" world it would be "GNU/Linux" - "Linux" is the kernel, GNU provides other necessary "operating system" functions.
I've taught an "intro to Linux class" a couple times and can say that most textbooks only mention the GNU project in passing (if at all - in the beginning "history" type chapter) - so from that perspective everyone knows when you say "Linux" you are referring to an operating system (if they know what an OS is)
my personal preference is to talk about "distributions" (Ubuntu/Red Hat/whatever) but don't mention GNU unless I'm in a classroom setting (and then more to drive home the technical difference between "kernel" and "operating system").
I used "Revolution OS" to fill up some class time - if you are curious (and didn't live through it). In the documentary Bill Gates is the "bad guy", Stallman the crusader/fanatic, and Linus the practical applier of knowledge.
with all of that said - my official answer to the question is "no one cares"