The worst kind of psycological game I have heard about is a group of people selecting a target "friend" and randomly saying "please wake up", "we miss you", etc. Then denying having said that.
I read it as a person and 3-4 of their friends follow a random stranger who’s going about their day and randomly say things like that as they’re passing by.
It's funny in that Anon thinks it makes them look cool instead of pathetic, and how in reality they'd flinch if somebody even slightly scruffy looked in their general direction
My first read was “peep my unstable ravings and respond in kind.” Mind that I don’t find this funny, given how frequently real aggression takes place against the disadvantaged, but they’re pretty obviously trying to make themselves look despicable and cringe in this story.