I just posted a comment at their site, and I am emailing the various professional Librarian lists about it. (We tend to help people locate ebooks, but not when they violate copyright.)
I don't think their disclaimer is enough -- I suspect they can be sued, and should be. But what I really suspect -- and no, I don't have proof -- is that they are phishing for membership info -- credit or debit card numbers, among other things. People unscrupulous (or naive) enough to fall for their scam might be jeopardizing their personal security.
(Go get em', SJ! Nice to have a laywer in the family. You might only need legal letterhead to get their attention!)