I'm a huge fan of Cloudflare in general, but sometimes I'm a bit uncomfortable with how much critical infrastructure is increasingly consolidated into a few single entities.
That's a lot of power, and a lot of responsibility. If there was an internal breach at CloudFlare, a sizeable chunk of the modern web would be in danger.
Though I find it almost equally commendable how much effort they put into applying their infrastructure know-how into making IPFS, Ethereum etc. accessible lately, and with that help pave a way for a more decentralized internet again.