No one should be making any accusations of AI generation without strong evidence other than vibes. That hurts the cause of anti-AI use and punishes people who don't use it.
Did you read the article and come to that conclusion or just blindly count the number of em-dashes and assume that? Because I don't get the impression that it was LLM generated
It has emdashes because my blog turns " - " into an emdash here: https://github.com/simonw/simonwillisonblog/blob/06e931b397f...