Therefore, classical marketing is less dominant, although more present at down-stream sellers.
Also, I guess you're saying I'm a paid shill, or have otherwise been brainwashed by marketing of the vendors, and therefore my positive experiences with LLMs are a lie? :).
I mean, you probably didn't mean that, but part of my point is that you see those positive reports here on HN too, from real people who've been in this community for a while and are not anonymous Internet users - you can't just dismiss that as "grassroot marketing".
Correct, I think you've read too much into it. Grassroots marketing is not a pejorative term, either. Its strategy is to trigger positive reviews about your product, ideally by independent, credible community members, indeed.
That implies that those community members have motivations other than being paid. Ideologies and shared beliefs can be some of them. Being happy about the product is a prerequisite, whatever that means for the individual user.