Not the person you originally asked, but the main reason is probably that referring to it as gnu/Linux is 1) already deeply associated with the Richard Stallman meme, to the point that referring to it in that way automatically comes across as either a joke or just a person being intentionally contrarian, and 2) just really weird sounding. In the minds of most people, there is no real reason to refer to it as GNU/Linux, because the actual operating system that does the things the operating system is expected to do - as in provide an API for syscalls, memory management, etc - is just “Linux.” That it’s routinely built alongside a set of core utilities designed and maintained by GNU is largely pointless. It’d be like referring to a hamburger as Buns/Hamburger or Buns+Hamburger. It’s just…weird.
Democrats are so ego driven that they think death itself cannot claim them at a moment’s notice. I think this is part of the facade of the Democrats people are, unfortunately, going to respond to this election: Democrats, as a party, like to present themselves as being all about compromise and caring. Getting things done for the #AmericanPeople. But when it’s time to step down and let others shine in the limelight because you’ve had your time and the physical realities of age are something you have to acknowledge, or when there might be a better candidate for an election and you have to make the difficult choice of not getting what you want for the good of the country, that fucking sentiment disappears like a fart in the wind.