Junk mail is a headache!

People are just tired of receiving junk mail! According to Jupiter Media Matrix, a New York research firm, Americans received an average 440 spam messages in 2000, 571 in 2001 and can expect 1,479 by 2006. I would have think that the numbers were going to be larger, but still is terrible to see your email box full of junk mail. People are so annoyed by junk mail that there are websites which present several tips to avoid them.
I totally agree with Emi and Phil in Chapter 14, people should get the opportunity to opt out from a candidate's mailing list in order to avoid problems with junk mail. It might be the case that they are not interested anymore in what a candidate has to say, and they deserve the chance of unsuscribing.