Spam Killer

It generates totally random pages with bogus email addresses (mostly .com and .net, but all others, too). Lots of bogus addresses will render email collections useless. Also, most spammers use "relay" email servers. These servers allow anonymous users to send emails. With lots of bogus addresses webmasters of relay email servers will receive lots of bounces which will encourage them to switch relaying off. No relaying, no spam.