You don't know how many people have flagged the article or not. There was a very sudden drop, so something happened, but it's impossible to give the actual root cause unless you're on the inside of HN itself. I'd assume flags over any sort of conspiracy here.
I saw the drop and wondered if there was something afoot, then talked myself off that ledge and assumed this was probably some kind of normal flag like ring detection triggered, etc.
Interesting additional note, though, the title has (relatively recently) changed to "Superhuman embeds tracking pixels in user emails" versus the actual article title of "Superhuman is Spying on You"
