These are just concrete examples to get the imagination going, not an exhaustive list of the ways that you are revealing your true self in the folds of your LLM chat history.
Note that it doesn't have to go all the way to "he gets Claude to help him win text arguments with his gf" for an uncomfortable amount of your self to be revealed by the chats.
There is always something icky about someone observing messages you wrote in privacy, and you don't have to have particularly unsavory messages for it to be icky. Why is that?