No it's fine, I just post the links because people like to look at previous discussions.
To be precise, it's fine once more than a year has gone by since the last significant discussion. Otherwise we treat reposts as dupes: https://news.ycombinator.com/newsfaq.html. But if a story hasn't had significant discussion yet, and it's particularly good, reposts are ok. Allowing good stories to have multiple chances at getting attention is a way to mitigate the randomness of what gets seen on the /newest page.
To be precise, it's fine once more than a year has gone by since the last significant discussion. Otherwise we treat reposts as dupes: https://news.ycombinator.com/newsfaq.html. But if a story hasn't had significant discussion yet, and it's particularly good, reposts are ok. Allowing good stories to have multiple chances at getting attention is a way to mitigate the randomness of what gets seen on the /newest page.