I refer to it as the social graph. When a site starts using metadata to map how users are related on a social platform. And then implementing features based on that. It’s not a buzzword but that’s the technical root that stems everything that makes an enshittified Facebookified site.
Unfortunately when reddit started becoming a social graph based site, the technical literacy of the user base also plummet. So nobody knew wtf a graph structure is.
I think higher education may have played a role. Kids have to spend more time studying for longer into their life. Less time for careless days of youth when every job requires 10 years of experience. Young people have been obsessing over how to fluff their CV with credentials rather thing just living life.