cool post. i agree that people's natural propensities (given their type/stacking) can become unhealthy in such a way that they would result in personality disorders.
i can see sx/sp instinct also being subject to narcissistic personality disorder - instead of seeking their narcissistic gratification from a multitude of other people (like an so-instinct might), they will focus their energies on one single person (e.g. a codependent) and "suck them dry", so to speak.
i think hoarders probably tend to have strong sp-instinct and/or Si-Te ego. strong sp gives the focus on survival. hoarders often become hoarders after experiencing major trauma that may be internalized as a life-threatening experience. weak Ni = fear about the future leads to overcompensating in preparing for it with material goods. Caregiving and Fi-seeking can also lead to animal hoarding (animals can't reject your love.)
Strong and/or valued Ne could also lead to hoarding. Keeping stuff around just in case you might want/need it later. (I primarily hoard books, notes, and hobby supplies. My interests cycle and change and I try to get the best books/info/tools on a subject I can, so that it'll be available to refer to as needed.)
I've been told that I'm not sp in part because of the borderline-hoarding and clutter it causes, even though I've also expressed frustration and annoyance by the clutter.![]()
IEE 649 sx/sp cp
Borderline: likely E4 but can also be E2, 6 and 7.
Narcissistic: tend to social first, E3 more likely, E7 also likely.
Antisocial: E8 is associated with psychopathy/sociopathy, also E3; E6 counterphobic can also have this disorder.
Histrionic: E2 and E4 more likely.
Schizoid: E5
Avoidant: E6 phobic.
These are the ones I remember now.
I have depression, borderline personality disorder, PTSD.
I usually have sp/sx stacking. Though I've recently switched from 4w5 to 6w7. I'm also focused on survival, always. Emotions come last, and that's probably why they're so turbulent when they happen. I have no idea how to handle even mild "threats" to my sense of safety.
You raise a good overall point, which is that too often we see in enneagram discussions where people assume that what they're discussing in enneagram, etc, are just ideas floating within that isolated typology, when in reality the same ideas are likely appearing elsewhere. It helps to, when one is talking of a certain psychology, just realize it is what it is, to some extent, whether it appears in personality disorders, enneagram, socionics, or wherever.
This is why to really deliver a good system one must ask what the relevance of those concepts to the system itself is -- that's the sense in which the system's version of those concepts differs potentially from other versions. It's near impossible to totally get rid of the overlap, and more importantly, there's no reason to.
I think one other point comes to mind... I often wonder how exactly to differentiate the point of stackings vs the point of the main types as sometimes I find it's done in a haphazard way. The sense I'm getting is that the instincts are much closer to raw emotional impulses which aren't formulated around some kind of well-defined complex/worldview.