Problem is, that even if this patent is invalidated, these NPEs are fundamentally lawyers in search of patents which they can "monetize". The system encourages this, because patents are assumed to be valid unless someone petitions for re-evaluation, which is neither cheap nor quick.
Meanwhile, people keep getting letters. tSCOg ran this scam for years, though I doubt it was ever profitable. But they do get marks for dogged persistence in the face of overwhelming ridicule. Marks deducted, however, for failing to remain in existence.
Biting the hand that feeds IT
