Do we mind the reputable advertisers? Hardly. And before any snide comments, yes, they do exist. Advertisers that understand that the only effect those in-your-face ads with blaring music have is that more people are getting pissed to the point where they start looking for a way to block that shit. Normal ads, banners and maybe even flashing banners, don't provoke that reaction. People load them and may even click them when the topic is interesting.
These are also the kind of advertisers that will honor such do-not-track standards.
And then there's the assholes that just want to abuse you for their gains. The kind of junk that comes piggy-backing with some "free" software that messes with your browser settings and invades your privacy. The kind you absolutely do NOT want.
And these are also the same assholes that don't give a shit about such DNT systems.
And as long as this is the case, people will use ad-blockers and of course they in turn won't give a shit about blocking the "good"... or let's say "less annoying" advertisers along with the real reason they install such content sanitizing tools.
"Honest" advertisers, if you really want us to believe in your DNT tech and not block you whenever we have a chance: Weed out the bad apples in your industry. Lobby for laws that outlaw such practices. For as long as these assholes are allowed to exist, we will block you, too.