Ask HN: Why can the same link be submitted twice?

2 pointsallworknoplay3 comments

I just submitted something second. Didn't realize it at the time, but it's true. I have several upvotes. The URL is exactly the same. The story deserves the collective upvotes, and the first guy should have my points. Why not run a de-duping first-submitter-upvoting process on submitted stories?

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The URLs are not the same. One has a trailing slash.

http://i.imgur.com/53N51Iv.png

Ah, right you are, I thought I checked for that. Regardless, that's easy to control for, and yet I see lots of dupe submissions and my post has been #1 for a while now while this guy's is way behind. So my question remains.

By the way, of course I have upvoted his story now that I realize it's there. However, I don't know if the people who voted for my version have done so or not.

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