Well then I guess people should stop relying on their IP address being one of many in a vast space for security and implement proper authentication instead.
It's not like your service has to expose all its secrets to an unauthenticated client sending you a GET / HTTP/1.1.
That's not the irk. Rude behavior isn't suddenly polite just because I have great security. The spirit of donating server time to the ntp.org pool is not to use the data for your own self promotion.