There was a stream where he said he always opened his downloads folder off screen so he didn't leak his porn folder like a WEEK before the incident and I definitely forgot to snip it because goddamn that's chekhovs horse right there.
I use the construction "Chekhov's whatever" all the time to signify "something has been introduced so it will come up again later." It's a meme now. It has outgrown the gun.
My understanding is that in a porn folder one of fictional well endowed characters was apparently supposed to be under aged. I also understand there were numerous horses.
After that story was published, nobody uses the swirl effect to hide their identity anymore. This is edit: satirically another pedophile, which was outed by accidentally opening his homework folder on a livestream.