Schizotypy was doomed to obscurity by Gordon Claridge and his frickin' conference proceedings. As opposed to the taxonic concept of Meehl where it is some condition you have or you don't, they just wrote numerous papers where they graded people on scales so now there is a "psychoticism" scale that competes with the "neuroticism" scale of the Big 5.

The DSM diagnosis for STPD

https://en.wikipedia.org/wiki/Schizotypal_personality_disord...

eluded me for a long time, it was when I came across Meehl's concept as articulated by Lezengreber

https://en.wikipedia.org/wiki/Schizotypy#Development_of_the_...

in particularly items (3) and (4) that made me understand why my life went the way it it did. Meehl postulated that schziotypy has a developmental disorder schizotaxia which then leads to negative social learning that causes it to become a personality disorder, it's a mistake to look at it primarily as a PD.