"Civil disobedience is the active refusal to obey certain laws, demands, and commands of a government" - Wikipedia.
Based on that definition I would say those guys managed to actively disobey many laws, including the unjust and discriminatory ones.
If this one guy is hitting another guy do you have the moral right to use force to stop him? I'd say yes, or at least I'd sacrifice my moral purity to defend that person. However in the case of anonymous vs MPAA/RIAA, is there a moral right to sidestep laws (unrelated to copyright, btw) just because the MPAA/RIAA doesn't let people get movies and music for free? Copyright is different from DoS attacking. Choose what you stand for clearly. If you truly believe in DoS attacks AND anti-copyright go ahead and actively disobey both (not that you're automatically right). But if you only believe in disobeying one and breaking the other law just to further your motive in the former objective, well then that's bad.
Based on that definition I would say those guys managed to actively disobey many laws, including the unjust and discriminatory ones.
If this one guy is hitting another guy do you have the moral right to use force to stop him? I'd say yes, or at least I'd sacrifice my moral purity to defend that person. However in the case of anonymous vs MPAA/RIAA, is there a moral right to sidestep laws (unrelated to copyright, btw) just because the MPAA/RIAA doesn't let people get movies and music for free? Copyright is different from DoS attacking. Choose what you stand for clearly. If you truly believe in DoS attacks AND anti-copyright go ahead and actively disobey both (not that you're automatically right). But if you only believe in disobeying one and breaking the other law just to further your motive in the former objective, well then that's bad.