I just watched the talk, and Troll Busters's comment is misplaced. Curtis didn't say exactly how much he spent defeating this troll, but it wasn't any $2M and

I just watched the talk, and Troll Busters's comment is misplaced. Curtis didn't say exactly how much he spent defeating this troll, but it wasn't any $2M and probably not even $50k. He said he just asked for screenshots showing the alleged infringement, and the troll failed to provide any. When the troll pressed for settlement nonetheless, Curtis offered him zero, and the troll accepted. When the settlement agreement arrived, he crossed out the NDA provision, signed it, and sent it back. It was returned signed (to the surprise of Curtis's attorney). Curtis evidently did consult with his attorney a little, so it must have cost him something, but it didn't sound like it was very much. In short this doesn't seem to have been a very determined or well-funded troll. Troll Busters may have a point here, but it's clear that he/she/it is also trying to drum up business.