Comment by sebastiennight

I've written multiple books, the most recent in 2019. I used to love the em-dash, and considered it the superior form of ellipsis (over the parenthesis, comma or semicolon).

I'm not planning on writing new books now, but if I did, I would completely get rid of em-dashes, because of their second-order effect of making the copy AI-written (and therefore less valuable).

It's also interesting that using a Skill that discouraged the use of em-dashes, I noticed that Claude's "thinking" internal dialogue actually disagreed with the Skill spec itself ("no, actually, em-dashes are perfectly normal and not a sign of AI writing") and therefore kept the dashes, against the Skill instructions.