I guess the "attack" was done by the guy doing the mass sell off since he had acquired the coins by hacking into Mt Gox and stealing other people's coins. That

I guess the "attack" was done by the guy doing the mass sell off since he had acquired the coins by hacking into Mt Gox and stealing other people's coins. That is stealing, not manipulation. Had that not happened, and if it was just some speculator doing a mass sell off, they should have let him do it and not done the roll back. If you sell at 0.01 per btc, and the market goes back up, you lose money. Simple as that.