It is a panic price drop. Pure speculation. Most of these threads about mt. gox and the trolls that try to convince you that it is the end ar actually working for their own gain. Why? Because they want to drive the price down, buy bitcoin cheap and wait until the price rises again. Get used to this. Then they do the cycle all over again. This is how they work. They are probably more invested in bitcoin than we are.
Damn, you ain't no newbie
Jokes apart we are in midst of times where we should tread carefully and wait for the weekend to get over.