I’m honestly stunned that people use AI for personal communication. It seems so alien to me.
The “tells” for AI are - as of this writing - very obvious. I assume they will disappear over time.
I keep testing with LLMs and it's super bad in writing convincingly in the style of a good writer. That's because good writing is driven by intent, and LLMs don't have intent.
I'm baffled by AI fans who seem sceptical that writing styles exist, and that discerning styles is just part of reading any text at all.
AI fans seem to be people who literally can't tell good from bad, and get upset when you maintain that you in fact can. They think you're having them on.
This might turn out to be one of those tricks like Ctrl+C Ctrl+V that surprisingly few people discover.