I check a week later, and here's Tanuki screaming up a storm because of the one method I could see pulling Ubisoft's pants down at the big money grubbing convention. Good for the "hackers", sorry Tanuki, but Ubisoft needs to be taught a lesson.
The money made from these types of games on the PC is relatively small for Ubi.
The only result that will happen from Ubi learning a "lesson" is that they stop making PC games or treat the platform as a dumping ground for titles that no longer sell on consoles. They might abandon this form of DRM but they will try a "new and improved" one eventually.
EDIT - Also, think about what you said. Ubi needs to be taught a lesson. Obviously someone who says that has not payed for AC2 on the PC otherwise they would not be so eager to see their game broken. Why do they get to decide the worth of Ubi's system? They are not the paying customers. Let the paying customers decide if it is worth spending money on.
You want to teach Ubi a lesson, don't buy the game. Don't bork it for those who did cause it undermines your entire position.