I've been looking into my written communication as I wondered if there was anything unusual. I took 3 longish posts from another forum, plus a letter I wrote, as examples.
I asked a couple of AI on my phone, Copilot and Gemini, if they had any comments related to tone, style, phrasing etc. You need to say this else it will just summarise the content. I did it in new sessions with memory off, so they don't have any stored data.
For all of them, they identified they highly likely came from the same person, so I have a consistent style.
They also pointed out characteristics that were indicative of people with ASD. I did not prompt them to say this. The way you think affects the way you write and it can be seen. If you can speak well, which is harder as you can't edit and structure your sentences so easily, it may also be visible. I have not tried that yet.
I also asked if they were susceptible to being misunderstood. Unfortunately, the answer was yes.
This may help to explain how the psychologists suspected before doing any tests. For some, it is embedded in the communication. Obviously the psychologists look at much more than that, such as what you are actually saying, or not saying, etc.
I just thought it was interesting and was surprised it was so obvious. I'll put some more info below (to keep this shortish).
A few caveats: it is not diagnostic, it may infer something from the question and then confirm differences, it's an AI.
They are good at pattern matching but I think there is a lack of quality ND training data. So take it with a pinch of salt.
