The problem with this community is it's full of people trying to make money.
trust me: if I were in the bitcoin business for the money, I would have stolen the bitcoin from the mtgox accounts I violated.
With the actual design of most of the Bitcoin exchanges password can be spoofed anytime you connect via a wireless network.
Bitcoin exchanges needs to take further steps to secure their customers, and need not to copy other people design, as it could propagate flaws in the market.