Yep: http://news.ycombinator.com/item?id=244621

Edit: And the URLs are identical; does the dupe-blocker only apply to submissions less than a year old?

Sorry, I didn't catch it the first time. Thanks for the link to the original, it has quite a lively discussion.

I remember reading a discussion on a post that was a dupe of another that was over a year old. PG said it was cool and that a year was enough time.