Re: One should note that running DNS resolvers is rather cheap
Running resolver domain name services is not that cheap anymore and has become a tad more complex than 15 years ago.
15 years ago it sufficed to have a medium sized box, gig ethernet, some Linux distro and bind (or whatever is your fancy) and off you went. Monitor memory and disk space and that was it.
Today we're talking about DNSSEC and preventive measures to protect your DN server to become part of a DDOS amplification attack. Preferably you go the ANYCAST way and that is anything but cheap nor simple.
So NO, running a resolver for mass consumption is NOT cheap nor EASY.