I don't believe Google wants to turn GMail into a data broker service, especially one that powerful. Why? Besides the obvious (spammers use it to learn how to b

I don't believe Google wants to turn GMail into a data broker service, especially one that powerful. Why? Besides the obvious (spammers use it to learn how to beat the system, and other companies use it to compete with GMail) you'll be creating an insane amount of workload in having to deal with all the complaints. The current system of "spam is what our users say it is" leaves very little for debate. As someone who's run large email systems this appeals to my laziness.