Anonymous has always done it for the lulz. They wouldn't do this if they didn't enjoy it. But with the lulz comes with it the acceptable knowledge that they are standing up for something meaningful. Every attack they want to do it because they enjoy showing that you do not screw with the internet or civil liberties.
It sounds questionable, but I know people who generally love being in the military because they enjoy the action overseas. So, they joined the military for the lulz and do what they feel is right for their families and country.
Thoses that commit crimes of piracy can be charged with theft. But the overall majority actually have no intension of illegal actions, rather they want to develop for the platform. Make it more efficient for linux, and code new software to run on the Cell. If Sony would drop this lawsuit, all the medical research centers that bought PS3s as cheap super computers will be able to crack open the PS3 firmware and use them again as they bought them for, cheap super computers.
And I edited my last post, check the two links.
You can buy cheap computer for the price tag of ps3 and code whatever you want on it.
PROUD MEMBER OF THE PSP RPG FAN CLUB