That makes it sound a lot more malicious than it actually is. Said user is an ex-Googler, did it to see if he could, went "oh shit" and immediately started serv

That makes it sound a lot more malicious than it actually is. Said user is an ex-Googler, did it to see if he could, went "oh shit" and immediately started serving SERVFAIL on it so other nameservers would be used. His intention wasn't to intercept traffic.