I saw this question. 2 minutes later, it was marked as a duplicate. How is this possible?
1 Answer
It was spotted very soon after posting by a riddle expert with a 'dupehammer'; their gold tag badge lets them singlehandedly close a question as a duplicate of another one. You can see this when you hover over the badge:
More information about this feature can be found on Meta Stack Exchange: Increase close vote weight for gold tag badge holders. The idea is that users who have solved so many riddles are likely to recognize when one is reposted.
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2$\begingroup$ Ironically, that question is not actually a riddle and shouldn't have been tagged as such. It is a duplicate, though, so no harm done. $\endgroup$ May 23, 2020 at 16:04