What Cloudflare wants is the most people/consumers possible using their DNS. Doing so will make lookups and translations faster for their customers than anyone

What Cloudflare wants is the most people/consumers possible using their DNS. Doing so will make lookups and translations faster for their customers than anyone else as the content is basically on the same network as the DNS lookup. When they go sell Enterprise content delivery services to their big customers they can tout a huge base of users tied to their DNS and sell on the performance enhancement these people will see when accessing Cloudflare customers content. CDN is all about shaving milliseconds off of content delivery and having a huge base of consumers using Cloudflare for DNS differentiates them and provides a measurable performance increase.