L33tsp34k also accomplishes this. The original anonymising hacker stylometry :)

I am intrigued by the idea that in the future, communities might create a merged brand voice that their members choose to speak in via LLMs, to protect individual anonymity.

Maybe only your close friends hear your real voice?

Speaking of which, here's a speculative fiction contest: https://www.protopianprize.com/

Disclaimer: I am an independent researcher with Metagov (one host org), and have been helping them think through some related events.

EDIT: I've belatedly realized that stylometry isn't involved, but I think some of the above "what if" thought could still hold :)