*sigh* Gotta love how people take one word and run with it.
Short version: *I* have to treat them *gently*. Me, not you. Gently, not "special handling". Geez ...
To put it in context, each type, to me, has a certain "vibe", and that's how I can (quickly, but occasionally erroneously) type a person. It's just something I do to facilitate communication. Once I have the vibe, I know how I can best communicate with the person individually. I'll speak with an INTJ differently than an ENTJ or an ISFP or an INTP or an ESTJ and so on. I also temper this with Enneagram, if I know it, as that colors things slightly differently for each type. I also rely heavily on the dominant function more than the MBTI description, as the Ti doms are very alike to me, as are the Te doms and so on.
In this vast
spectrum of possibilities, the INFJ is a fellow Ni dom. BUT if I treat them as INTJs using my harsh relentless logic, they have a difficult time with that. Not because they're stupid, but because they'll (for lack of a better description) see the Ni links but find the Te judgments "off". Therefore, for me, as an INTJ and aware of these typologies, I note this pattern and immediately "tone down the Te" if you will. I say the same things, but more gently, more softly, more considerately, more attentive to the emotive effects of my words.
W/r to INFPs, they'll look at me askance if I use this same language with them. In my experience, they tend to very much prefer the blunt Te, and it helps that I can resonate with their Fi perspective. In that arena, I'm more concerned with handling the (very subtle!) aspects of the Ne/Si perspective. With INFJs, I resonate on the Ni, and so I'm actively focusing on the Te/Fe barrier.
All types get such "special handling" from me. It's just a typology. It's like love languages, where I use the other person's language to communicate my meaning and intent.
Now, shall we discuss your tendency to take offense and look for the nearest high horse as opposed to asking someone to expand on what they mean?