It doesn't seem that unlikely. Someone makes a video of themselves with no clothes on (or whatever) and not fully understanding the privacy options they make it so it can only be shared to people they choose.
15 years later it's much easier to trawl through millions of videos by incrementing and check them automatically for nudity than anyone thought it would be back in the day.
And also that when the links stop working you just skip that part of the critical training rather than ensure the safety information is conveyed some other way.
Umm, no. Plenty of people have outward personas that they can maintain through extreme intoxication.
Guy Burgess was well known when a British diplomat for protracted alcohol binges accompanied by all sorts of poor decision-making, but he never let slip that he was a Soviet spy.
15 years later it's much easier to trawl through millions of videos by incrementing and check them automatically for nudity than anyone thought it would be back in the day.