Another point is that StackOverflow answers in functions, methods, or snippets. We generally code in modules. At best, user will provide stripped down modules into a minimal viable example that can be ran (like on a code playground). However, you can’t precisely match your module with that. Hence we must search. That mismatch fundamentally drives duplicates in perpetuity. Other than that, I 100% agree with the author.
Maybe start asking “What’s a more up-to-date way of doing X?” or “What’s an alternative way to doing Y?”.