>And therefore anything that is remotely questionable will be blocked. Not just kiddie porn. Pissed off a local business with a bad review? Blocked.

This is already the case. There is a lot of lawful, useful, medical or educational content that is actively censured on social medias because they include words or pictures of organs while same social medias actively encourage and develop algorithm to push underage girls (and possibly boys) posting pictures of themselves in sexual poses, attires and context.

Big tech and social media networks love and push CSAM, they just hide the genitals but the content really is the same.

> a lot of lawful, useful, medical or educational content

Like what? It’s all there on Wikipedia, and for all of Wiki’s faults, I have trouble imagining what kind of useful, educational, medical information you will find on social media that is better than that.