One of the issues today is the volume of content produced, and that journalism and professional writing is dying. LLMs produce large amounts of "good enough" quality to make a profit.

In the 90s we could reasonably trust that that the major news sites and corporate websites was true, while random forums required a bit more critical reading. Today even formerly trusted sites may be using LLMs to generate content along with automatic translations.

I wouldn't necessarily put the blame on LLMs, this just make it easier. The trolls and spammers was always there, now they just have a more powerful tool. The commercial sites now have a tool they don't understand, which they apply liberally, because it reduces cost, or their staff use it, to get out of work, keep up with deadlines or to cover up incompetence. So, not the fault of the LLMs, but their use is worsening existing trends.