>I counted about THIRTY em-dashes, which any frequent generative AI user would understand to be a major tell.

Dude, plenty of people write with em-dashes and semicolons; I personally use them constantly (and I don't use LLMs at all). Em-dashes are trivial to type on MacOS (Alt+Shift+Dash) and even on Windows—I used to have the alt code muscle memorized (Alt+0151) but now I just use the Mac version with an AutoHotkey script. I get being wary of LLM spam now that it's pretty much everywhere, but this is not the "tell" you think it is.

To be clear, you're free to dislike this writing style, but I'm 100% confident that it has been common since long before LLMs were in widespread usage.

> his real writing style when you read his actual written work is great.

You're doubling down on this not being "his real writing style" despite acknowledging you were wrong about this being written by ChatGPT?