And somehow I can't help but to agree with this. I fear the hammers that will fall on me.
I don't actually have a big problem with it as practiced by IFJs. ITPs and EFJs though, seem to be a bit harder to understand regarding their usage of Fe. ITPs because they don't really get it themselves and are unaware of when they're doing this, and EFJs because it's just so overwhelming. I haven't known enough ETPs to really have a judgment either way with them.
I guess that for me it would be a tie between Ni and Fe.
Ni - Ni dominants can be a little paranoid. And, boy when Ni thinks it's right, it thinks it is R-I-G-H-T... even if it is completely out of touch with reality.
Fe - I've grown to appreciate Fe more, but it still scares the sh*t out of me. Fe is sooooo different than my Fi that I often have no idea where it's coming from or what it's thinking. Especially the "group think" aspect of Fe. That totally freaks me out.