I think it's easy to recognize non-valued functions through the absence of valued functions. That is,
/
most often comes across to me as something like "not-
/
". I also find it useful to treat functions in pairs like this… i.e. if someone seems
valuing, they should necessarily show signs of
-valuing as well if this is true. It's a simple measure that can help double-check a person's type.
But yeah. I agree w/ you that you don't need to use a certain IE in order to see the IE. All you need to do is learn how to recognize the symptoms of it. Just as say, a psychiatrist can recognize symptoms of schizophrenia without themselves being schizophrenic. However, being able to merely recognize an IE should not be mistaken for actually understanding the nature it…
I don't like this emphasis.
I also disagree with the idea that you need to 'know the person well' in order to type them. Typing is not that deep.