Previous discussion here: https://news.ycombinator.com/item?id=3958627
http://news.ycombinator.com/item?id=3958627 (516 points, 442 days ago, 234 comments)
(1)I post something.
(2)We discuss.
(3)After a time(likely a function of the # of stories that get pushed to HN a day), we stop discussion[1].
(4)Someone, after an arbitrary period of time, reposts.
(5)HN automatically moves the older comments over to the newer post[2].
[1]This is not to imply the conversation, has been resolved in any meaningful way, merely that we've elected to move on.
[2]This allows the conversation to grow without much re-treading of the old.