While CloudFlare has some features that might be available on other CDNs, don't use them, if you're worried you'll ever have to leave the platform. It is really

While CloudFlare has some features that might be available on other CDNs, don't use them, if you're worried you'll ever have to leave the platform. It is really simple to migrate between CDNs with feature parity -- DNS CNAME. The article is putting CloudFlare up against CloudFront; the article is positioning CloudFront bills as exorbitant; their is no reason one can't move back to CloudFront and start paying bills again, in the event CloudFlare raises prices.