Homestuck fans are all embarrassed to be homestuck fans (in a funny knowing way). Calling them out is similar to telling someone they lost the game.
This guy used an emoticon that’s common in the homestuck community for whatever reason so they got called out and gave a silly exaggerated reaction.
I never read homestuck, but my sister did so I’ve been adjacent to it for a long time
I’ve been seeing research on this for a few years now, crazy it’s come this far. You can track the movement of people in a home pretty accurately using WiFi like a radar