As an individual (INFJ) thoroughly interested in Myers-Briggs, I often see this discussion brought up. As a short rebuttal, I feel as though many of those who tout Myers-Briggs as a comprehensive personality test fail to understand what the Myers-Briggs attempts to identify. While the "value-add" is more subjective, I'm going to go ahead and say it's not as useless as this article claims. While I don't think anyone (…
The main reason I don't think Myers-Briggs can be a true-ism is that each dimension is actually a spectrum. For example I am about 60% "I" (and thus 40% "E") so the various "I" true-isms only slightly factor on my personality.