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