I was thinking about this the other day, using LLM text to thwart stylometric analysis. At some point, I'd read about using machine translations to do the same thing (translating a text to, for example. Chinese then back to English). This seems to only work if the translation method isn't quite perfect so get an "Engrish" effect or the like. But you could probably feed your manifesto or whatever to one of the various modern chatbots and have it rewrite it in the style of Poe or Pynchon or maybe a generic business email. (Obviously, setting aside the issue of if the chatbot is keeping all this stuff in a database somewhere).