I'm surprised more companies don't do this, because it seems to me that the impact is clear: Like ambulance chasing, patent trolling relies on the simple principle that it's much, much cheaper to settle than to go to court -- for both sides. It's huge that they won, but they didn't need to. By sending the message that they will always go to court, my guess is they'll stop being sued.

On the other hand, the trolls know this, and may react by targeting companies that do this to demonstrate that it's not an effective strategy.