A while ago I was musing on spam, and the increase in volume I've seen recently.
Well, I admit it. I think I'm part of the problem. But, then, I think that everyone running silent anti-spam software is too. While on the one hand SpamAssassin keeps spam out of my mailbox, running it doesn't keep that spam out of anyone else's mailbox, and neither does it do anything to keep the spam off my machine in the first place. IP blocking, though, does do that.
I think it's time to build a widget to help automate the generation of the "you suck, get lost" IP list from the spam that SpamAssassin identifies.