Upon inspection, the author's personal website used em dashes in 2023. I hope this helped with your witch hunt.

I'm imagining a sort of Logan's Run-like scifi setup where only people with a documented em dash before November 30, 2022, i.e. D(ash)-day, are left with permission to write.

Phew. I have published work with em dashes, bulleted lists, “not just X, but Y” phrasing, and the use of “certainly”, all from the 90’s. Feel sorry for the kids, but I got mine.

> I'm imagining a sort of Logan's Run-like scifi setup where only people with a documented em dash before November 30, 2022, i.e. D(ash)-day, are left with permission to write.

At least Robespierre needed two sentences before condemning a man. Now the mob is lynching people on the basis of a single glyph.

I started to use — dash so that algos skip my writing thinking they were AI generated.

wasn't talking about the em dashes (i use them myself) but thanks anyway :)