the funniest thing about nanowrimo allowing LLMs to be used to write is that there already exists and has existed for well over a decade an equivalent project, NaNoGenMo, about writing code to generate 50k words. it's always been tongue-in-cheek, but some of the submissions are genuinely interesting and funny - people finding the most absurd ways they can generate 50k words, or people making enormous walls of ASCII art and calling it a "novel," etc. it's been going on since long, long before LLMs existed.
one of the most memorable for me was someone generating a script for two players playing the card game "war," and running it over and over again until they reached a game so unbearably long and tedious that it crossed the 50k word threshold.
like, obviously, writing code to generate many "words" can be beautiful, can be thought-provoking, is a project in itself. and they could have appealed to that. but no they said "it's racist of you to not like the prose of chatGPT." says a lot about their intentions and what they consider to be the point of nanowrimo!