This is bs. I consider myself far more computer literate than the masses. Yet, I wasn't aware that the iOS safari had the capability of DNT. I accidentally found out about it while playing with the settings on my development device. DNT is a relatively new capability, which used to be handled with plugins such as Ghostery. Browser vendors should teach their users about this shiny new feature, otherwise it is practically useless, as it will not protect those who need it the most.