According to model A it is not weak. It can look weak though. It is strong function but unvalued. I think the quote was referring to that but unsure.
Figure 1
Model A: The four blocks.
MENTAL RING
Blocks that consciously register and verbalize reality
VITAL/ENERGY RING
Blocks that subconsciously register and experience reality
EGO BLOCKZone of confidence, expertise, willfulness, and self-actualization. What you think about when things go right.
Autonomous creativity block
Functions 1 and 2 (Base and Creative)
"I know I can."
- accurately interprets and evaluates self and others
- jokes, praises, criticizes, and argues with ease
- rarely experiences doubt, fear, or guilt; can be dictatorial
- frequently exaggerates and speaks categorically to demonstrate point
- seeks out new information and acquires skills deliberately
- trusts own judgment more than others’; not prone to follow
- strives to share knowledge, skill, and experience with others
- seeks an audience, faithful followers, and due recognition
"I know. I can. I want to."
SUPER-EGO BLOCKZone of self-criticism, self-doubt, guilt, and self-perfection. What you think about when things go wrong.
Creativity control block
Functions 3 and 4 (Role and Vulnerable)
"I know I can't."
- evaluates self by one’s adherence to societal norms
- successes, strength, and unmonitored expression of block allow individual to freely actualize Ego block
- failure, incompetence, and oversensitivity cause low self-esteem, complexes, and psychosomatic disorders
- strives to accumulate and follow accepted practices and rules of thumb to “bone up” and to avoid attracting attention
- able to give advice but not direct assistance
"I'm not good enough. I must work on that."
SUPER-ID BLOCK
Functions 5 and 6 (Suggestive and Mobilizing)
"I don't know I can't."
Zone of dependency, childishness, and suggestibility. What you feel and do as a result of others’ care or lack of care for you.
- demonstrates helplessness and willingness to follow
- lacks well-defined criteria for evaluating quality and correctness of incoming information from others
- acquires new values, skills, and habits by following trusted others in real-life situations
- forgets to take care of individual until situation becomes dire
- understands oneself only through others’ eyes
- without others’ care feels abandoned and resentful of society
- responsible for overall state of emotional and physical health
"Why doesn't anyone help me?"ID BLOCK
Functions 7 and 8 (Ignoring and Demonstrative)
"I don't know I can."
- what one does automatically when one is being oneself
"How is it I do that?"
7. Ignoring function
(or Limiting, Observing function)
Vital
Accepting
Strong
Inert
Subdued
Situational
Cautious8. Demonstrative function
Vital
Producing
Strong
Contact
Subdued
Evaluatory
Bold
7. Ignoring function
The ignoring function is also called the observing, or limiting function.
A person has very little use of this element, as it is the rival image of the base function, representing an antithetical approach to the same domain. It lies in the subconscious as a persistent annoyance to the individual. Therefore, he or she tries to ignore it. When lectured by another on the use of the ignoring function, the individual sees it as superfluous information, for he or she knows how to use the function well, but chooses not to use it in favor of his or her more convenient base function. Usually the base function creates byproducts relating to the ignoring function, but the way it describes such information is very carefully chosen to fit the view of the leading function.
A person limits the expression of this element in public (in favor of the base function), but sometimes uses it extensively in private, and can call upon it when necessary. For example, an SEI usually defaults to his base functionand shies from activities that are highly physical or cause conflict, but if inevitable confrontation arises, he is able to use his
and become fiercely coercive and quarrelsome for short periods of time.
The extreme avoidance of this function can make it appear weak at times. However, when engaged it does not cause the same kind of psychological stress as a weak function, instead creating a kind of boredom or malaise.
8. Demonstrative function
A person uses this element mainly as a kind of game, or to ridicule those who he thinks take it too seriously. They often intentionally go against its conventional usage simply to prove a point in favor of their creative function. However, this function is used quite often in private, to produce information of its element to support their creative function when focusing on making contact with the external world.
A person will often have just as sophisticated an understanding of this function as his or her leading function. Unlike the ignoring function it plays a major part in a person's worldview, since as the vulnerable function of one's dual it requires especially delicate attention. Thus, when a person is given information regarding the element in the demonstrative function by someone else, they will tend to take it as obvious information that is irrelevant to completely focus on. One will often use the demonstrative function to defend and further support their beliefs made in the vulnerable function.
The demonstrative function is easiest function to use (after the base function) yet often occurs sporadically. When one experiences a problem regarding this function, one must correct it as it does play a vital part in a person's worldview.
https://www.the16types.info/vbulleti...-of-the-Psyche
Edit: just noticed you didn't say weak here but I have seen others say the ignoring is weak.
Gotta go for now.



and shies from activities that are highly physical or cause conflict, but if inevitable confrontation arises, he is able to use his
and become fiercely coercive and quarrelsome for short periods of time.
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