Anyway, I don't know that I have anything really useful to contribute to the discussion of the suggestive because, like I said, in my experience it works for me as advertised: I'm not very good at it, I admire it, I prefer being around someone who will provide it for me to attempting to manufacture it artificially by myself. I also find that the more I am secure in a supply of Se, the more I feel free to indulge Ni. I imagine this is a conservative effort on the part of my psyche:
I. Se is necessary to avoid losing touch with reality
II. The more psychic investment in Ni, the less psychic investment in Se.
III. Therefore, to avoid losing touch with reality, Ni must be regulated or limited in order to maintain a sort of necessary minimum of Se (and avoid getting an imaginary snake in my belly.)
IV. Given an "external supply" of Se (which I will confess I experience in quasi-mystical terms of like... just being around this Se-leading person makes me feel more "grounded"---that is, the medium of exchange is not defined or explicit, and so I would have to attribute it, if pressed, to the "energy" or the "vibe" of the person), the limit on Ni may be relaxed, so I "produce" less Se, but that's OK because there is an "external supply."
So yes, Se works for me just as advertised. And given my "medium of exchange" quip, I would suppose that it operates in an unconscious fashion as well. So yes, Se is, for me, an unconscious and compensatory function that is suppressed in my own psyche (for the greater operation of Ni) but maintained at a certain low level to avoid losing touch with reality, and accordingly is welcomed from external sources, as it is a stress on me to produce a variety of information for which my information-production-collection-and-processing faculties are not specialized or optimized.