This isn't a "gotcha" experiment, it's a real question. And the problem with "I know it when I see it" is that right now people are biasing towards "if it's good it must be AI" and accusing legit artists and writers of being AI.
I happened to me. I spent 10 minutes writing a reddit comment. I researched it, I sourced it. It had sections with headlines, bullets, and even em dashes. 100% written by me.
As soon as I posted it, it was downvoted and I got PMs saying "don't post this AI slop!".
The problem is the AI has been trained on well executed material, and when you execute well, you look like an AI.
I mean the art community has always been continuous. Artists fight over everything, copying style or composition, claiming people are tracing others works. It's honestly not new, same thing in new clothes.
Clair Obscur: Expedition 33 (recently game of the year) got caught leaving a small amount of placeholder AI content in their game and everyone lost their mind
I’m sure reasonable artists agree with you, but many today do not
