I've always thought of cloudflare as a plan to centralize the traffic that is not large enough to warrant their own CDN. All the examples you mentioned run thei

I've always thought of cloudflare as a plan to centralize the traffic that is not large enough to warrant their own CDN. All the examples you mentioned run their own content delivery in some way. IMO cloudflare represents the death of the small player on the public internet, before it most small players ran their own internet-facing services, with it many choose to just run behind cloudflare.