Why do trolls still try to sue Rackspace? They publicly proclaim their anti-troll policy. If 88% of these cases kill the troll when they go through the courts fully, I would stay well away from them if I was a patent troll.
Same with New Egg ... but I guess it's because patent trolls know the patents aren't worth much unless they try to hit every "big" user who can pay up. And even if 88% of cases are won if followed through, I bet 88% of the time they're not followed through, and the payments then keep trolls alive. Reform is still our best option, for software patents.