I answered a question some years ago that was widely accepted to be the canonical answer to the very common question-- I think I had over a 200 upvotes and the answer alone added 2000 rep to my profile. However someone marked the question "closed as duplicate" and linked to the supposed duplicate. The supposed duplicate question and answer was significantly younger than the question I answered. Why would the question containing my answer be closed as the duplicate when in fact the other question and answer was the duplicate? Shouldn't it be the other way around?