For years, even before LLMs, there have been trends of varied popularity to, for lack of a better word, regress - intentionally omitting capitalization, punctuation, or other important details which convey meaning. I rejected those, and likewise I reject the call to omit the emdash or otherwise alter my own manner of speaking - a manner cultivated through 30+ years of reading and writing English text.
If content is intellectually lacking, call that out, but I am absolutely sick of people calling out writing because they "think it's LLM-written". I'm sick of review tools giving false positives and calling students' work "AI written" because they used eloquent words instead of Up Goer Five[0] vocabulary.
I am just as afraid of a society where we all dumb ourselves down to not appear as machines as I am of one where machine-generated spam overtakes all human messaging.