>>It has never been realistic for people to find the truth,
Rather strained definition of truth there. The truth that matters is a basic not-very-wrong version of what is happening.
Examples: 1) The earth is roughly spheroidal. 2) NASA is a real space agency and landed people on the moon in 1969-1973. 3) The trails behind airplanes are condensation particles, not sprayed chemicals. 4) Vaccines are safe and effective, and the ratio of issues to prevented disease is on the order of millions-to-one, a vast benefit to society, especially those who medically cannot get vaccines. 5) Hijacked airlines and not pre-set explosives brought town the WTC towers in NYC on 9/11/2001. Etc. Etc. Etc....
We do NOT need a doctorate in Geology, selection into NASA Astronaut Corps, graduate astronomic physics course, PhD-level immunology, or a structural engineer's license to understand any of the above to a useful level.
Yet, there is sufficient human-generated noise to convince millions that none of these are true.
And you are claiming that adding industrial-scale AI agents to the public 'conversation' at a scale never seen in history will have zero effect?
Sure, it might completely fizzle. But the normal and prudent expectation when something comes in and "floods the zone with shit" [0], especially when that shit has the potential to be at a volume that is far beyond anything experienced, is to expect that it will have some effect.
What evidence do you have that it will have no effect? In answering, consider another top HN story at the moment "Facebook Is Being Overrun with Stolen, AI-Gen Images That People Think Are Real". [1]
[0] Steve Bananon's description of a disinformation tactic
[1] https://news.ycombinator.com/item?id=38684309