What class action lawsuit ever kicked Apple butt?
It took class action suits to get Apple to acknowledge and repair defects they swept under the rug numerous times.
If you haven't been in the community since the G4 days and watched the evolution to Intel, the evolution of the iPods, etc. then perhaps you've missed a bit of history. Or perhaps you've got selective memory.
Some examples have already been previously presented in this thread. Though the fanboys pretend that it didn't happen.
Missing from those examples are incidents involving 3 generations of the iMac G5.
I was one of the (un)lucky ones who got the G5 iMac which had bad capacitors, fan issues, and smoking / burning power supplies.
Apple denied that the machine had any problems for several years. The community had already identified swelling capacitors within a month of the machine's release. Apple played stupid, and pretended the problem didn't exist until a much later class action suit forced them to repair all of the iMac G5 machines.
Naturally, having had my machine suffer from the swollen capacitors, fan failure, and a power supply fire, it was in the landfill by the time the class action suit won, and forced Apple to actually admit that the design was defective.
Apple insisted the whole time that the machine had no defects. And therefore denied repairs to the machine.
So yeah, class action suits have several times forced Apple to go back and repair machines with dangerous manufacturing defects.
Unfortunately, I had given up fighting with Apple on my machine. And it was already in the landfill by the time the class action suit forced Apple to repair them.