> The Do Not Track header didn't die because of an arms race, it died because there wasn't any legislation making it criminal to track people who had explicitly indicated to you that they did not wish to be tracked.
That was the first big problem. The second was that some versions of MSIE set the header by default, without the user having taken any action to request it. This made it infeasible for any major web sites to honor the header - by doing so, they'd break functionality for most MSIE users. (MSIE was, at the time, still the dominant desktop web browser.)
That was the first big problem. The second was that some versions of MSIE set the header by default, without the user having taken any action to request it. This made it infeasible for any major web sites to honor the header - by doing so, they'd break functionality for most MSIE users. (MSIE was, at the time, still the dominant desktop web browser.)