I am a sucker for cultural reference jokes, esp if it’s some subculture that I am/have been a member of (e.g. IRC in the late 90s/00s). It’s fun to find a connection to a stranger, even if it’s vague and superficial. It’s something like that feeling of familiarity and comfort you get when you sing along with a song you know all the words to.

(The score on my post above has been bouncing around all over the place, lol. The fun police are definitely out in full force. I’ll stop having fun when I’m dead, thank you.)