Though I respect both your opinion and Fyodor greatly, I have to disagree here. Mass-scale isn't really the issue. They have plenty of hosts to work with, so m

Though I respect both your opinion and Fyodor greatly, I have to disagree here. Mass-scale isn't really the issue. They have plenty of hosts to work with, so masscan wouldn't help. They're doing more than just open port detection, so nmap's many other features are helpful, as is the fact that nmap's scanning signatures aren't as suspicious as a custom scanning service that just so happened to be deployed worldwide.