You should link to previous (more active) discussions if you want to claim that the submission is a duplicate. That said, the statute of limitations has expired on this one, since the most recent big discussion I can see was 11 years ago[0].
Those comments are an interesting read-through, since more than one person directly challenges the relevance of the submission. These days, not many people on this website would feel that a short personal retrospective on cyber culture and the 90s is out-of-place. Was the HN of a decade ago more hardline with its focus on interesting hacker pieces?
The "most recent big discussion" is still 11 years ago. As your list shows, all the more recent submissions got much less attention - most don't have even 1 comment.
HN permits some duplicates, particularly over a long enough time. Even recent duplicates are allowed, if previous submissions did not generate discussion but the moderators feel that the content is interesting enough and that it didn't get a "fair shake".
