The fact that its not very useful for the forms of writing most people participate in nowadays--short form responses that are heavily contextual. Even longer form writing is often labored over--people use LLMs for outdated types of communication, like long-winded emails or school papers.

Idk, working in the AI space, I've started to write very succinctly and straight to the point, maybe as a counterweight to the often overly flattering, verbose forms of prose that the LLMs employ. I pay close attention to every word and try to never write more than is necessary.

Less words maybe good if useless filler gone.

But what if need more words for complicated idea?

Short message easy if just 'orange man good' or 'orange man bad' but what if want to explain reason also? Dumb down? What if discussion too dumb already?