alt Hacker NewsQuite often, when my search returned a 'closed as duplicate' reply, I found the allegedly duplicate question did not accurately describe my problem, and the answers to it were often inferior, for my purposes, than those which had been given to my original question before the gate was closed.
I think many would agree that this policy was the single biggest moderation failure of the site. And it would Have been so easy to fix. But management believed fewer high quality answers were better. Management was wrong.