Minecraft, creative writting, coding, modding, graphic design, animation, 3d modeling, 3d motion graphics and video editing, photography, magic tricks, behavioral psychology, ancient history, L.A.R.P, painting thousands of warhammer minatures... This list goes on for a very long time.
More than just one computer, it would take quite a network to deliver such an attack. Could still be one person though. I've sent Vaq a possible solution that we use here at the data center to prevent attacks. And am more than willing to lend any further advice.