I don't see it as particularly unique, it's just another form of SEO. LLMs are generally much more gullible than most people, though, they just uncritically reproduce whatever they find, without noticing that the information is an ad or inaccurate. I used to run an LLM agent researching companies' green credentials, and it was very difficult to steer it away from just repeating baseless greenwashing. It would read something like "The environment is at the heart of everything we do" on Exxon's website, and come back to me saying Exxon isn't actually that bad because they say so on their website.