Had dnsimple failed to do so? Did it help?

Because Easydns http://blog.easydns.org/2013/06/04/post-mortem-of-the-june-3... said "While most of these typically use open resolvers, it is also now common to use authoritative nameservers in reflection attacks".

Can we end the "War on 'Open' Internet (Resolvers)" now?

Because I don't think an organized crackdown on "open" authoritative nameservers is in the best interests of our freedom.