What I don't understand is why this doesn't fall ALL on Bitfinex's shoulders? They charge a "fee" on trades, which is for running of the site/profits/risks. From what I understand, they take a 15% cut out of the profits when "loaning" the funds to the margin traders. That 15% is due to the high risk of the counterparty risks associated with those daily loans. Bitfinex needs to take the 15% they have been earning and pay back the losses. Otherwise, file for bankruptcy.