Reposts are allowed on HN if a story hasn't had significant attention yet (https://news.ycombinator.com/newsfaq.html). Links to previous submissions aren't helpful if there's no actual discussion at the other end, which explains the downvotes here.
Your post beat this one in time but this one won the luck of the draw. Sorry about that. We're hoping to change the duplicate detector in a way that gives the original submitter credit more often, but for the time being there's still a lot of randomness in which post gets traction. For now, the way to mitigate that is to submit many good stories; it evens out in the long run.
