This is where my appliaction of a "privacy" idea to a "security" problem falls down.

With privacy, I try to be pretty vigilant, but I don't do everything in my power to prevent tracking. I am more worried with companies collecting large swathes of data on my behaviour rather than the odd tidbit. I'm quietly hopeful that analytics, advertising et al. companies will not go to such ingeniously dodgey methods for tracking peoples behaviour (though being hopeful is very different than expecting them not to be dodgey).

But who knows, as a filter that might catch a portion of phishing links, it may have some use.