I believe it is the site administrators who have inserted Cloudflare in between their sites and their users.
Usually it is done for rational reasons of establishing a protection against bots. But what is less rational, in my opinion, is when everyone uses the same provider for that.
Because it indirectly turns Cloudflare into a monopoly. And monopolies often converge to a state when they start to abuse their position.
I am unaware of such a capability of Cloudflare.
I believe it is the site administrators who have inserted Cloudflare in between their sites and their users.
Usually it is done for rational reasons of establishing a protection against bots. But what is less rational, in my opinion, is when everyone uses the same provider for that.
Because it indirectly turns Cloudflare into a monopoly. And monopolies often converge to a state when they start to abuse their position.