>By using this, G--gle will hound you with impossible capchas and privacy-forward search engines will think that you're a bot

A friend of mine had an alternative theory: by making it very very hard to track you, you have shown to be somewhat intelligent and you have shown that you know more about computers than the average Joe. Goolag, knowing you're a somewhat intelligent human, gives you the very hard captchas it needs to train.