I doubt that many would attack those solutions if they actually worked well, but they don't. These "solutions" are a big part of the reason why the web gets smaller for me every day as more and more websites become unusable.
Cloudflare is very much anti-internet. And I'm a very security-obsessed person. Just like Reddit I believe we need to dial things a bit closer back towards chaos like a venn-diagram (safety)[x](chaos) there's a balance and I believe the internet is worse off when this balance is out of wack.
There might be some awful stuff on sites like 4chan but it also generated a ton of the memes that later filtered down into mainstream internet culture. Culture and innovation often happens in the chaos and fringes, which is an area I believe the world is becoming completely intolerant of in some attempt at idealism. But there are real sacrifices in between (ie, the mostly harmless stuff getting tagged as bad guys).
We need to be better at calming down and embracing the chaos, pushing back against FUD, and maintain a good balanced default. That chaos and flexibility is what originally made the internet great and endlessly promising.
Based on the various posts I've seen from Cloudflare founders on here I'm not convinced they are taking this problem as seriously as they need to be.
However, I see people complaining about Cloudflare in lots of places other than here. The number of people adversely affected by Cloudflare is not small.
Regarding Cloudflare, a regular user will have no idea about what Cloudflare is and what they do. If something like the OP happens to them, they will just figure “the site is broken” and move on. So there could be a large hidden number of users who have suffered from overzealous Cloudflare blocking without being able to identify it as such.