If you do not return 100% of the BTC, you can bet SendChat and BlockTrust will have no future.
BlockTrust? Really? Trust? I hope they do not allow this to happen.
Btw, what happened to the multi-sig account BlockTrust said it was implementing? This is not a multi-signature address.
https://blockchain.info/address/3JKDKzsGjvg7F9hF6bbq8316HRKF5YX368