wow even on HN people have no clue how any of that works? all LLM generation has some inherent randomness to it, if you replace part of that randomness to be deterministically random the result of the generation with the fingerprint and without it, is INDISTINGUISHABLE. This has absolutely nothing to do with "synonym swapping". Its also again people not understanding how anything works missing the real concern, which is that nobody can ever tell if it isn't also secretly a fingerprint with the user and session id.