I would be willing to bet that 90% of extremely upset users are using Adblock Plus anyway, and a smaller amount (though significant, in this crowd) use NoScript

I would be willing to bet that 90% of extremely upset users are using Adblock Plus anyway, and a smaller amount (though significant, in this crowd) use NoScript or something similar to block Google Analytics altogether. It would be basically impossible for Google to even notice their disappearance.