i've noticed there is a common line of reasoning behind a lot of the function-analysis failures:
"if my compassion and genuine emotional self is my Fi, Fe is faking it"
"if my empathy and caring for others is my Fe, Fi is egoistical"
"if my understanding of reality is my Te, Ti is just mental masturbation"
"if my ability to think deeply is my Ti, Te isn't really thinking"
like wise, i've seen Fi users claiming that Fi values are utilitarian and Fe users are the ones adding "stubborn social norm morality which has nothing to do with the well being of anyone". it seems to follow the same game rules from either side of each function coin - people identify their identity and experience with the metaphors describing a function and then define the opposite function as the opposite (or lack) of those aspects that they identified in themselves.
then you have people who do find a way to relate or play themselves into the described opposite, but then they see it from a perspective of rationalizing that very opposite, so the opposite function to that one is now the opposite of whatever they connected their rational too, rinse and repeat... the ecology of function definitions just keeps branching off.
i've had an INFJ here present me with the "i think this would counter your hopes in X... should i say it?" question. now, i respect that for her this is a legitimate choice, and i've seen it in others since, and it's why i figured i should present it to cafe.
in the same time when i am presented with that, to me it seems like a fake choice - sort of like how a lot of religions do the "you have a choice, ... to do what i tell you or GO TO HELL".... it's presenting a choice between going through door A or going into a wall with a door B painted over it - unless you are the roadrunner that isn't a real choice. likewise, i already know that the box has information that can mean (-X) because i just got told that, it's right there in the warning label. it's going to be the case whether i look at it or not - i don't experience my choice to look at an information as a form of control over it's validity, only opening the box and looking at it and examining it has a chance to tell me that. i can choose to not look at it, but not looking at it isn't a meaningful choice in regards to its content.