Spam is the scourge of our time. So too are telemarketers. However, I've solved the telemarketer problem by disconnecting my phone service and chucking the phone in the dumpster. Do I have to do this with my computer too in order to get rid of spam? These guys are harrassing leaches and it seems that the only way to deal with these criminals (and they are criminals because what they do is contrary to the Criminal Code in my country) is to drop out of society.
Maybe Bobby Fischer had it right.