“I wonder if this is the last straw that will convince people to move in droves to challenge/response or whitelist mechanisms, as I argued last year. And I’d be surprised if these volumes don’t overload mail servers at major ISPs. We’re seeing the closest thing yet to the Morris worm that shut down the Net in 1988.”
I am considering something similar, but less drastic: routing every email from anyone NOT in my address book to another folder for later review. Only people I know will stay in the inbox.