Is it possible that the wallet is directly owned by bitterex?
In that case they would need the coins to pay the customers who request a withdrawal.
No, the wallet doesn't belong to Bittrex. You can search it at
www.walletexplorer.com, and you will see that it is not linked to any service or exchange. So it is likely a "stand-alone" wallet which belongs to some really big whale. Now we should try to find out whose this wallet might be. Any ideas?
Okay, I figured it out. That's a crazy amount of BTC. How did you come upon this address?
All big wallets are known. You just need to watch them closely.
Probably because the withdrawal limits are higher compared to other U.S. based exchanges.
But no other exchange will follow Bittrex's example. It's only the 20th in volume and it's not even real dollars. If you want to crash then you'd have to head elsewhere.
The guy is probably just cashing out using an exchange which he finds most reliable or where he is registered.