Lack of education--do they teach spelling in school anymore?
Hardly the case on this forum, I'd guess the average age is over 50 here. And in my experience the more highly educated annd intelligent: hard science and engineering majors make up and use plenty of acronyms. You obviously do not associated with those folks. Physicists are notorious acronym coiners.
One of my favorites from the 1940's is the one for shutting down a nuclear reactor: SCRAM. That stands for SuperCritical Reactor Axe Man. I don't know if Fermi, one of the most intelligent men ever, coined it but it was for his reactor in Chicago. I looked it up and Fermi did coin it in a slightly different form.
CRUD is another: Chalk River Unidentified Deposit