It has been posted many times, but none of the posts rose above the 'significant attention' threshold described in the FAQ. This one does, though, so it'll be treated as a dupe if it gets posted again.

https://news.ycombinator.com/newsfaq.html

Btw, we're working on a better approach to duplicate detection that will reduce the number of reposts and will more often give credit to the original submitter.