What made your radar go off? The em-dashes? As a lover/user of em-dashes myself, I'm curious to learn more about what you think "llm text" looks like in your head radar detector unit. :)
Also there's the personality. I've talked with chatgpt enough...
I'm open to the entire account being an agent. That's certainly possible.
There's a new market for astroturfing virality. Create hundreds of agents on various sites and have them engage in pablum and occasionally mention your product.
We're entering a phase where you can't just have a dumb model to filter that out
Just use -, that helps a lot.