They don't seem to be tied to your account (so they'd be reinstated when you log in)... :/
Do Not Call stops annoying phone calls from interrupting you. Again, people demand it, because it makes a real difference in their lives.
Do Not Track, on the other hand, seems to be a total flop. (In FireFox, 8% adoption rate and falling; in other browsers, presumably even worse.) I don't see how you could refer to "the rise of Do Not Track" with a straight face. This is due in large part to the fact that the vast majority of people aren't particularly interested in making the ads they see less relevant and don't really care about whether a website is giving them an anonymous cookie.
"We first met to discuss Do Not Track over 2 years ago. We have now held 10 in-person meetings and 78 conference calls. We have exchanged 7,148 emails. And those boggling figures reflect just the official fora."
That post just reinforces my view, in my opinion.