It is sufficient justification (edit: in this case) because the item has had significant attention within about the last year.
https://news.ycombinator.com/newsfaq.html
HN_FAQ > If a story has had significant attention in the last year or so, we kill reposts as duplicates. If not, a small number of reposts is ok.
Being a repost is not sufficient justification, as stated above.
EDIT: Cool Dang, I get ya.
It is sufficient justification (edit: in this case) because the item has had significant attention within about the last year.
https://news.ycombinator.com/newsfaq.html