AI - the sort that people normally refer to is an LLM (Large Language Model)

Simply described - it is heuristic. It looks at the web and comes up with the statistically most common answer. Maybe that includes some sort of digital due diligence but don't bet on it.

So the problem is that anything that is found by it and then informs what the next person puts on the web - creates positive feedback. And we have all "enjoyed" the audible version of "feedback". Which would have been "positive" though not in the aesthetic sense.