It could only be controlled when the mediator puts in disproportionate amount of time and attention, so that it overrides all the vandals and all the trolls. What our innovation, I would like to say, is that we watch what the moderators do, and then we turn them into code. That is to say, we automate this kind of process of mediating of moderation, so that any number of trolls are now faced with robo-mediators. [laughs]