I make personal sport at dealing with these guys. I go to a site that allows me to trace the senders IPO, then I do one of two things, copy that address 250 times, changing just the first number by one. Example -
1abuse@scummailer.com,2abuse@scummailer.com, etc etc. Then I copy all 250 addresses and place them in the blind copy address box, change my address to a fake address, then copy the important info on who sent it when, and off the "bomb" goes.
On there end they get 250 e-mails from me that says STOP SENDING this ^&^%&^%&%^ stuff - and some time I"resend" this so they get a few thousand of these at a time.
Now for the ones that come from China I have even more fun with. In China ALL e-mails are under the scrutiny of the Government, so in the heading I place things like, REVOLT NOW, OVERTURN THE GOVERNMENT, PEOPLE UNITE, HU Jintao IS A BLANKETY BLANK, ...you get my point.
If I get an email direct from someone in AFRICA, and they are probably on dial up, I'm on cable, then I send a HUGE file that will take 30 minutes to download, so I'm sure I've tied up their computer for hours.
I used to get up to 1500 e-mails a day of spam. I'm down to a high of 52 and a low of 11, this month, according to my spam blocker.
Yes there is revenge to the scammers.