IE 10′s "Do-Not-Track" default dies quick death

&#62; <i>Which means that tech and ad companies who say they comply with Do Not Track could simply ignore the flag set by IE 10 and track those who use that browser, which means Microsoft has no choice but to change the setting.</i><p>That's a reach. How would the ad companies know if the user manually turned it on or off? Ars is claiming they'll completely ignore <i>any</i> DNT from IE?

For posterity, HN discussion on an earlier submission (same story, just linked directly to Wired): <a href="http://news.ycombinator.com/item?id=4076910" rel="nofollow">http://news.ycombinator.com/item?id=4076910</a>

Very strange story spin:<p>Microsoft tries to do the right thing, then Ars+DoNotTrack working group makes them look like the bad guys....

I just installed Firefox on Fedora 17 and found, to my surprise, that Do-No-Track was disabled by default.