Sad as it may seem, out of idle curiosity I read their usage policy
Quote: "Regrettably, there are occasions when individuals or groups of people exchange messages or involve in online activities, which are considered to be unacceptable by the Internet community. This is described by the generic term of "abuse". Although much unsolicited messages, particularly e-mail (SPAM), may just be a harmless but annoying way of advertising products or services, some can be as distressing as receiving malicious telephone calls. "
they seem to go to great lengths to decry the practices they use!
So here are a couple of ideas.
1) At an allotted time to be agreed as many people as possible should try to access their site thus forcing their server to fail,
2) E-mail them at
[email protected] with your opinions as to the worth and annoyance of their "tacky" advertising