According to Drudge, an account can be setup on there using any email address without any sort of verification. Tony Blairs email address was in there. So, the existance of an email addr in there doesn't mean that the owner of that email addr had any knowledge of it.
But, if the hack reveals more than just account info, like conversations or actual credit card info, then there might be something.
Well, my point is that they fact that people can, and do, do this sort of thing is wrong. The perps should be punished severely, if caught.
But that doesn't mean that I feel any sympathy for the “victims”, assuming that they actually did it, and I suspect that most of them did. Could be wrong.