[Xirdus]

Whether we like it or not, em dashes are effectively verboten in online discussions and blog posts if you want people to take you seriously. If the idea that excessive hyphenation is an AI tell gains traction, it too will become impossible to use without ruining your credibility.

[danabramov]

This is not true. I regularly get HN front page hits, and still use em dashes. Nobody accuses me of AI writing. Writing with em dashes is not a problem if you have something to say.