But the post I responded to is wrong. Blocking third party trackers does not block my hosting of the JS file; this is only discouraged for most trackers. Most trackers also have a gif-pixel option and by default (eg. quantcast) or a server-to-server option (eg. kissmetrics). I was merely pointing out your conclusions are wrong about Firefox, extensions, or HTTP headers preventing the capabilities of trackers. And again, you are very welcome to not be tracked online; that is very much within your right; you are just spreading falsehoods. Have a look at evercookie, for example.