LLMs use the em-dash excessively but correctly. This post is littered with them in places they don't belong which makes it look decidedly human, as if written by someone who believes that random em-dashes make their writing look more professional, while actually having the opposite effect.
> This post is littered with them in places they don't belong
Does he speak the same way - pausing for emphasis?
It's Stephen Wolfram, mathematician and computer scientist. This is how he portrays himself https://content.wolfram.com/sites/43/2019/02/07-popcorn-rig1...
Somehow I don't think "trying to make my writing look professional" is very high on the priority list.