Facebook launched with the whole 6 degrees motto, meaning you physically knew someone who physically knew someone, etc. And the theory was everyone in the world was connected by max of 6 hops. So it would be ironic that a group of people could disappear physically, then FB tries to pretend they are still around. If FB was the only social media platform this could be a possible worry, since their AI could also suppress anyone commenting that their friend has died.... but we all know there are many other social platforms. This 4channer sounds like a LARP to me.