Hmm...how do you stop private thoughts from reaching the LLM? Suddenly you can be prosecuted for thinking the "wrong" thoughts?
Yeah, this whole area of UX scares me. Silent speech techniques could strike a balance, but it seems obvious it wont stop there - consider what a state actor would do if they could skip interrogation altogether?
Unfortunately I think this is inevitable because as a species we perform a steady march toward collective desires for items of science fiction, so start your adversarial double-think practice now.
"My AI just sent my boss a 12 paragraph screed because I thought about how much I hate him"
As someone with OCD, this tech is pretty far up there in terms of potential nightmares.