Have no auditors who can prove all this virtual Bitcoin trading on exchanger backed by moneyfull private keys.
When people start to windraw Bitcoins from exchangers MTGOX2 will happen.
So better keep your Bitcoins outside echangers for safety.
https://electrum.org/ if you can not use bitcoin core wallet.
do you mean that the Mt.Gox case will be repeated where many bitcoins are hacked and dumped completely, so the price of bitcoin drops drastically as it is today?