Not a single word of it was. I wrote this one entirely in Apple Notes, so there weren't even any VS Code completed sentences

It has emdashes because my blog turns " - " into an emdash here: https://github.com/simonw/simonwillisonblog/blob/06e931b397f...

My biggest appologies, a very bad move on my part. I'll pay more attention before any sort of accusation like this

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.

Do elaborate, I don't see anything standing out

So what? as long as it conveys the point it was supposed to, should be fine IMO.

If we are accepting LLM generated code, we should accept LLM generated content as long as it is "proof read" :)

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