Sadly, that ship has passed... long ago. When you encounter a random person about "Linux", they will think of the Linux ecosystem, not just the kernel. In other words, your and GP's definition of "Linux" is different, and they are both correct depending on how would you read it.
(And before you go almighty on definitions, the majority of linguists agree to just monitor - or "describe" - the words as normally and plainly used.)
I'm aware of the equivocation, but there's absurdity in the statement "there's no discipline in the Linux community" demanding a definition that excludes Linux proper. Descriptivists and prescriptivists should agree that no matter where you lie on the spectrum, this is bonkers.
Sadly, that ship has passed... long ago. When you encounter a random person about "Linux", they will think of the Linux ecosystem, not just the kernel. In other words, your and GP's definition of "Linux" is different, and they are both correct depending on how would you read it.
(And before you go almighty on definitions, the majority of linguists agree to just monitor - or "describe" - the words as normally and plainly used.)