> 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.
In other threads, the mods explained that the dupe detector is weaker than expected on purpose so good stories get a second (and third, ...) chance to get popular. Sometimes the first submission don't get attention by bad luck (wrong time, another submission was too popular, random, ...). So it's common to see that the second or third resubmission gets to the front page.
I'm sorry to be so pedantic, but prevent an argument from anyone looking
for confirmation, the quote is from the HN FAQ [1], not the HN
Guidelines [2]. Both are linked at the bottom of most HN pages.
BTW, Gus, at least some of the time I've been trying to use your
preferred "Previous" format with points, days, and comment count when it
seem relevant and useful (i.e. when it won't be killed as a dupe). You
suggested it in a comment a few days or weeks ago. It's more work, but
I'd bet it's more helpful, especially for new users. Most of the time,
adding dupe links is simple and should happen quickly since it prevents
split discussions and manual merges.