(This is entirely unrelated to the content of this submission, but I'm curious: I'm pretty sure I submitted this more than 24 hours before the time that HN now

(This is entirely unrelated to the content of this submission, but I'm curious: I'm pretty sure I submitted this more than 24 hours before the time that HN now shows, and it didn't get much attention. But then it somehow got resurrected with the timestamp of the submission (and the few existing comments) adjusted. Does HN do this a lot?)