The AACS control folks are just starting to figure out how much people hate copy-protection schemes:

Mr Ayers would not comment specifically on the AACS group’s plans, but said it would take “whatever action is appropriate. We hope the public respects our position and complies with applicable laws.”

He said that tracking down those who had published the key was a "resource-intensive exercise".

According to a Google search, almost 700,000 pages have published the key.

Jonathan Zittrain, a professor of internet law at Harvard Law School, said that assuming the key could break a DVD, it's distribution would infringe the provisions of the Digital Millenium Copyright Act (DCMA).

Good luck getting all 700,000+ sites to take down the key - especially those outside the US, where the DMCA isn't law. Sure, some of the people involved in this are pirating DVDs - but that's not really the issue. There are perfectly valid reasons to want to copy a DVD (what if I want to watch LOTR, but not carry my DVDs with me when I travel?). These schemes just piss off law abiding people, and they don't throw up so much as a speed bump to the pirates. Assuming that all of your customers are crooks is not a great CRM strategy.