Passonit,
WGA updates continually refine the effectiveness of the two programs (Validations and Notifications), not only in their ability to examine and classify whether an installation of Windows is genuine or not, but also in their ability to assist the user in resolving common problems that may have created a false positive report if those conditions were encountered with previous versions.
Also, since new KeyGen keys are generated every day by pirates, because pirates are constantly tweaking their crack programs, and because Volume Licensing Agreements expire or are modified every day, the valid and nonvalid Product Key population is a moving target.
It's curious that you find the EULAs so cumbersome. The initial complaint at WGA rollout was that the EULA did not clearly state what was happening on the individual computer, so the EULAs were revamped to provide more information. Perhaps this proves the old saying that you cannot please all of the people all of the time.
WGA started out as, and remains, an opt-in program. You do not have to install either WGA validations or notifications on any computer if you don't want to.
