I have. You have to click through to a separate screen to get the option to disable it. If you try that, it will warn you on the next screen that you are not using the recommended settings. Then variously using IE10 you will get prompted to use the recommended settings. Microsoft makes it pretty hard for an average person to disable it.
DNT was a voluntary standard, and the advertisers refused to buy in unless it was off by default (the vast majority of people will not change defaults, even if you make it easy for them). Microsoft violated that agreement to hurt Google, and as a result DNT is dead.
The whole point of DNT is that it is a voluntary measure by advertisers to avoid tracking people who don't want to be tracked.
Given that turning DNT on by default would essentially turn DNT on for everybody, supporting DNT in that scenario would have imploded the whole business model of the same advertisers.
Obviously they're not going to voluntarily decide to go out of business, so the advertisers then dropped support for DNT entirely.
Now no one gets the benefit of DNT, not even the privacy-conscious minority who actually cared about it.
we already beat that horse to death. it is not enable by default. it is SHOWN to the user to chose. and the checkbox is enabled by default, because, let's agree on this, microsoft did their homework and that is the best choice to recomend to their users.
it is never enabled against the user knowledge. it is just the correct default when it is presented to them.
and again, by no-one, you mean YOU. you are pissed off that everyone is not disabled on DNT and not even shown the option, and only you and other tech savvy people can benefit.
DNT was a voluntary standard, and the advertisers refused to buy in unless it was off by default (the vast majority of people will not change defaults, even if you make it easy for them). Microsoft violated that agreement to hurt Google, and as a result DNT is dead.