[Ajedi32]

Yeah, my first thought when I read the headline was "Again?".

DNT was actually pretty widely implemented in browsers for a while, but it ultimately failed because there wasn't anything actually enforcing the standard. It was essentially just a way to politely ask servers not to track you.

[Sylos]

If Microsoft had't made it the default in IE, then DNT would have been an explicit action to show that you do not consent to tracking, which would have had legal bearing.

[user5994461]

It had zero legal bearing either way.