I've used double dashes for years and now they get automatically turned into em dashes, and I'm not an LLM (that I can tell so far).

I manually type en- and em-dashes, which on Mac is easily typed using the Option key and on Linux is easily typed with a Compose key, and even on iOS you just long-press the hyphen key.

I had to learn the difference between hyphen, en-dash, and em-dash when typesetting scientific papers and theses in LaTeX, and after that it just doesn’t feel right to not use them "properly".

    and I'm not an LLM (that I can tell so far).

Maybe ask your doctor to administer a Turing test?

I believe the correct test to administer would be the Voight-Kampff test.

https://bladerunner.fandom.com/wiki/Voight-Kampff_test

I asked Perplexity to provide a witty reply--but none of the ones provided were amusing enough.

thanks