Ain't it funny
They block edns client subnet, thus reducing performance for those using dns-based balancing, when they run their own anycast network. Unfortunately most end users will not realize that by using cloudflare's dns they are actually making performance worse for some sites. They argue that this is due to privacy but most dns lookups not for research purposes result in a tcp or udp connection to the domain name being queried anyway.
Biting the hand that feeds IT
