Please tell me you are joking. This isn't the case of some Patent Troll licensing an obvious technology then sitting on it til someone develops it. Tivo is a company that built an incredible device that everyone wants to copy. This is EXACTLY the kind of thing a patent is meant to protect. AT&T stole Tivo's idea and is now making a profit on selling it, acting as a direct competitor to Tivo using Tivo's own patented ideas. If suing for patent infringement "should not be tolerated", what is Tivo's recourse?

How about using the number of registered users? Most sites I have seen require users to login before posting.