Good for privacy litigation. "My client had DNT in her browser set to 'on' and the company intentionally ignored this and tracked her actions on the web, vioalting her right to privacy and causing monetary damages in the amount of $________."
Web developers might hate it, but DNT could be potentially good for end-users who want to make privacy claims. It's just one extra header. A few extra bytes. Meanwhile things like XML and JSON, which add considerable bloat to web responses, are accepted without any complaint.
On the other hand now every single line of code that gets changed has to reviews by a lawyer to make sure it is compliant with the DNT legislation. And if your a startup, the best way to take you down is probably a couple of frivolous DNT lawsuits.
Web developers might hate it, but DNT could be potentially good for end-users who want to make privacy claims. It's just one extra header. A few extra bytes. Meanwhile things like XML and JSON, which add considerable bloat to web responses, are accepted without any complaint.