Like, I can still comment on other flagged stories even now, but on that one I couldn't. It's since been unflagged, so I guess I can't prove it, but I've never seen this site act like that... Real memory hole stuff.
And during that time it was removed from the submitter's page, the new page, and my favorites (it's back now).
Would have to have been a pretty weird and consistent glitch for a site that hasn't changed much in like 20 years.
Half tempted to email HN and ask what was going on there, only I wouldn't expect honesty.