It is a bug as there is potential to exploit this for karma farming and account reputation. Submit an archive link of already submitted story to bypass duplicate link check, once submission gains traction, admin replaces the archive link with original link but karma is farmed by archive link submitter.
This thread should have been merged into previous one and karma points should have been removed from archive link submitter.
Also a duplicate link checker upon replacing links would have caught duplicated submission. There is lot of room for improvement here.
> This thread should have been merged into previous one and karma points should have been removed from archive link submitter.
That would be fine with me. I do think that sometimes it's weird that something will hit the front page in the 2nd or 10th time it has been submitted. Good content matters but luck does too.
Finally, I submitted the archive link not really thinking about duplicates, and because I thought the original would be paywalled.
This thread should have been merged into previous one and karma points should have been removed from archive link submitter.
Also a duplicate link checker upon replacing links would have caught duplicated submission. There is lot of room for improvement here.