Pretty much that PC. LOIC was the weapon of choice a few years back, but that required lots of annoying kids all running that software and pointing at the same target. I gather that this is more bot based, so people are most likely unaware that their machine is being used. Once the traffic responsible is identified it should just be a case of filtering it out. I guess the problem here is that PSN is built on a budget and that budget doesn't include a robust as hell firewall. And why should it? After all, they don't lose money. You lose a few days off a subscription, but your anniversary won't change.
My biggest annoyance here isn't that the service was down, it was that they didn't acknowledge and update properly. We all know what went on, why don't they come out and say it? Tell us where they are up to? My go they could even use humour, but the updates they posted were worse than no info at all.
Also, the only people so far to come out of this with any compensation, is the fucktard that did it. Well I'm sorry Sony, but as a paying customer I think I'm entitled to something. 2 days extra? A shit game? anything. But accept it happened and that we deserve some form of recognition. I had to play Advanced Warfare for fucks sake. Do they even know how bad it is?