This is why each country needs to educate and maintain their own researchers across as broad a spectrum of disciplines as possible. Also why there needs to be healthy locally financed (through taxes and grants in addition to consumer spending) ecosystem of reporters and media, so that social media (and LLMs) can be easily discarded as sources of social truth and information like other entertainment products in favour of the trusted ones.
As for technical truths, I don't think using informal social media like the stackexchanges or LLMs to explain how camera lenses or checksums work yields materially worse outcomes than consulting Wikipedia or Knuth. For most things, where it doesn't matter, the blind copy/pasters will prevail. Where it does matter, the organization of the work itself has to set out with establishing accountability that encourages the appropriate amount of diligence anyways. And also the point above about having some local expertise.