Privacy in that example would be if no party except you and your friends can access the contents of this interaction. I wouldn't want neither Apple nor my ISP t

Privacy in that example would be if no party except you and your friends can access the contents of this interaction. I wouldn't want neither Apple nor my ISP to have that access. A company like OpenAI that offers a SaaS is no such friend, and in such power dynamics (individual VS company) it's probably in your best interest to have everything public if necessary.