Page "Anti-spam techniques" Paragraph 11

Spammers often regard responses to their messages — even responses like " Don't spam me "— as confirmation that an email address is valid.

Likewise, many spam messages contain Web links or addresses which the user is directed to follow to be removed from the spammer's mailing list.

In several cases, spam-fighters have tested these links, confirming they do not lead to the recipient address's removal — if anything, they lead to more spam.

This removal request of filing a complaint may get the address list washed.

To lower complaints so the spammer can stay active before having to acquire new accounts and / or internet provider.