The people replying like that are in the barely-not-novice-anymore category themselves, and their mental model of the world is that everybody is just fumbling around doing everything wrong like they were doing themselves a short time ago. It's true that when you are just past the point where you're not totally useless any more, there is a point where you think you're God's gift to the world (not judging - I have felt like this many times over, it goes away after the next big hurdle you run into...), and it's impossible at that stage to imagine the type of abstract thinking you get after many more years of experience.

But yeah - the 'XY problem!' crowd (along with the 'But The Rules!' crowd) has also totally destroyed Stack Overflow.