One of the most frustrating parts of some early experiences I had with some programming classes, was a lack of "meta". So, we're learning some specific constructs... but what is the fucking context!
This is one reason such topics come up, whether on StackLatest or wherever. The new "team" members want to know where the fuck to start and what it all means.
I'm put in mind of Organic Chemistry I. A great class for "weeding out" before majors are declared. At least as I experienced it, a boatload of often "arbitrary" memorization... A real slog, when you couldn't see the forest for the trees.
Mind you, some significant percentage of "What's best?" posts are indeed people just too clueless or lazy to tackle any element of the question themselves. But... that's what voting and moderation are for.
StackOverflow seemed to be dealing with this pretty well. I don't see what the need for the change (in attitude, if not stated policy) was.