[michaelwww]

That's just not the case or Microsoft wouldn't advertise it's "Do not track" feature, people wouldn't switch to Chrome just for incognito mode, and more people would be using IE on their Windows machines because it comes pre-installed. People do care.

[Trezoid]

So, "Do Not Track", first introduced by firefox and supported in just about all browsers, incognito mode, supported by all browsers (including pre-chrome)...

The market share of IE (and the usage habits of people of both normal and more advanced tech knowledge) points to the fact that people frequently DO use IE (or safari) because it's pre-installed and only change when it just happens (chrome getting installed and set as default by various other installers being a good example)