The issue with duplicates isn't reposts of articles as such, it's not wanting significant duplicate discussions. We allow reposts as a way of mitigating the randomness of /newest. But once a story has gotten significant attention, we bury reposts as duplicates. (But after a year or so, enough time has gone by that a repost is ok again.)
In the current case, the previous submission didn't get much attention, so we didn't count this one as a dupe. In the case of your post https://news.ycombinator.com/item?id=26812145, the previous submission of the story did get a big discussion, so we marked the repost as a dupe. There's no contradiction.
Does that make sense? If not, take a look at some of the previous explanations. If you still have questions after that, let us know.
In the current case, the previous submission didn't get much attention, so we didn't count this one as a dupe. In the case of your post https://news.ycombinator.com/item?id=26812145, the previous submission of the story did get a big discussion, so we marked the repost as a dupe. There's no contradiction.
Does that make sense? If not, take a look at some of the previous explanations. If you still have questions after that, let us know.
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...