It may not be evil but it is really stupid, because it means Google results no longer give insight into the structure of the web (things like normalized google

It may not be evil but it is really stupid, because it means Google results no longer give insight into the structure of the web (things like normalized google distance can't be trusted, for one). What they could have done instead is personalized Gmail's spam filters, so that I could actually train the thing. But no, lots of false positives that don't respond to training. (Personalized spam filters are the only way to beat spam, since a dedicated attacker can't test against the filter with dummy accounts.)