Yes, and I tell people not to store on exchanges, take custody of their coin. There is no bank in Bitcoin!

Agree, there is risk for the 5 minutes it takes to transfer the coins out. If you are on boarding from fiat, there is a degree of trust to extend to the exchange. But this is not Bitcoin, it is a centralized exchange. There are other ways to buy and trade coin too. Earning is best.

I knew not to leave coins with MtGox. I knew not to leave them with Cryptsy. This is a lesson I learned from banks.

Can you elaborate how a bad actor, any bad actor, can confiscate, steal, reorder or devalue a UTXO recorded on an immutable blockchain for all eternity?