What is with this obsession of Linux users to want everyone to be "advanced users"? It's precisely because of that, that Linux doesn't have a bigger marketshare
Same reason we don't teach primary school pupils and university degree math in the same classroom or why NFL teams don't want to train against high school freshmen or Michelin chefs aren't interested in advice from their colleagues at McDonald's. You're not contributing anything useful at this level, you're just in the way. It's open source, people don't get paid per copy they sell. Most aren't trying to win a popularity contest. They're looking for a professional community/tool to support them and don't want it dumbed down to be newbie friendly.
And some of them aren't exactly going to apologize for it either, in their minds you're the one butting in on a place you don't belong, like trying to get advice at a doctor's conference instead of scheduling an appointment. It doesn't help that some users act like you're their support staff and expect them to drop whatever they're doing to help you. It's very tempting to basically say we don't give a shit. Of course there are some will also immediately jump to the conclusion that any problem you have is because you're an idiot, just like all the other idiots.
Most software try to separate newbies from experts, developers from users with varying degrees of success since they're not exactly crystal clear definitions or mutually exclusive categories. And without one bishop in the cathedral to swing the ban hammer, it's not so easy getting rid of destructive elements. It usually takes some rather extremely obnoxious behavior to make a whole community throw you out. But if this is approaching TL;DR, well they don't want you there and market share isn't an important metric for them. Why should it be?