Yes, this. I've asked a couple of questions where the only responses are from people saying "possible dupe of x" where x is something that has a couple of the same words but no relation to what I'm asking.

Turns out if you design a forum where a high effort, high quality post can be devalued by a low effort response, you discourage high effort, high quality posters.

This is where we need SO's "The Answer" feature, whatever they called it. Never seen it distilled so well.