In defense of Cloudflare, so much of the Fediverse is resource-intensive.
For example, when I post a link, I often take websites down.
I've also been told that the mere act of replying to someone taxes 4-core CPUs.
To someone who is unprepared, that's shocking!
So obviously, a service like Cloudflare is going to be in huge demand for running the Fediverse.