I seem to remember there's a system in place to prevent duplicates (where the submission of a duplicate link results in the upvote of the original story), but maybe that's limited to the first 24h? Idk, HN works in mysterious ways
replyThis has negative impact on searching older discussions. Instead of 1 result for 1 URL (within few month) getting 2 or even more.
replyIt's a settled enough part of HN that you'd do better emailing hn@ycombinator.com about it than you will litigating it in public. I don't care either way, I'm just explaining the behavior to you.
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