Yamato Nadeshiko said:
S/N does not dictate interests. Just cognition.
I wouldn't be surprised in the least if half of the internet intuitives are mistyped sensors anyway.
First, in the post you quoted, you find *TWO* different things: the MBTI test and functions theory, which are a priori not the same. Statements you make about cognition refer to the latter, not to the former. The former is actually just a statistically based instrument, and so it is only appropriate to ask of what correlates with it, not really what it "is" and "isn't" -- and resoundingly stats on the MBTI test will involve correlates with interests, as WELL as cognition.
Second, there is a sense in which I'd agree that S/N does not *dictate* interests
even in the statistically based instrument. That sense is, once again, that such an instrument dictates nothing whatsoever, but it does have correlates. Functions at least have some sort of philosophical definition, hence it is more appropriate to talk of what they definitively are and are not.
We can of course debate how vague or specific the definition is, but at least there's a scope for the kind of answer you seem to seek.
This isn't the conventional wisdom, but it is the more nuanced point of view. Your point of view arises if we accept the doctrine that the MBTI is an indicator to functions types, and not an independent instrument. That, to me, is more or less an inadmissible point of view, given I think the way the MBTI was constructed seems to expressly move away from Jungian functions theory and aim to enter the realm of standardized psychometric methods, and the kind of information those methods can provide is quite different from the kind a functions theory would purport to.