Again that level of AI/ML means being able to state what the intent of a comment or document is. If we ever get close to that point, that programs can reliably mark something as "risky" content, human thought is in big trouble.

"Risky" material is subjective. Something even humans can't make out reliably very often.

I think, this is the result of the tech firms putting content creators of old out of business, but not investing in the necessary editorial power, subscribing instead to the "wisdom of the crowds" school of thought.

They have not paid for (and will not be able to afford) the distributed human editorial power which was lost.