GoDaddy and their new "Selective DNS Blackouts" policy

GoDaddy has a new policy (as of July, 2011) that lets them block DNS packets from high-volume DNS servers. Any domains using GoDaddy’s DNS hosting are affected (any domains with ‘domaincontrol.com’ in them). Two such sites that are affected include a niche search engine that is in development, and a project that keeps track of statistics on domains. Sites like these that are blocked by GoDaddy’s new policy will be unable to include domains using GoDaddy’s DNS hosting (except domains owned by GoDaddy, which are exempt from the Selective DNS Blackouts policy).