That ability to withdraw even from Bitfinex appears to be limited to small (1 BTC) amounts. They like others have quite onerous verificatiin and anti-moneylaund

That ability to withdraw even from Bitfinex appears to be limited to small (1 BTC) amounts. They like others have quite onerous verificatiin and anti-moneylaundering documentation requirements and give themselves at least a month to review your papers. You, like most people, won't need to get out a lot of money, until you do... and then you may not be able to. Good luck :^)