BFX is slimy, but are your "losses" her in the from of hypothetical gains if you had held all of the coins BFX took @$636 or whatever? That's a bit suspect if so. You could have bought in when they redeemed all tokens and been ahead even in that hypothetical game.
I do understand people getting upset about these hypothetical losses in that they were forced to liquidate their crypto holdings into fiat. But this also shows that Bitfinex isn't a scam. If it was that would have been the time they made the exit, but instead, they did their best to compensate customers and get the business back up and running.
And since BFX has still yet to issue an announcement about this, yes, if you are a US user you are unable to lend and need to convert to and withdraw BTC, or contact support for a USD withdrawal.
A mature company would have made an announcement containing the date USD could no longer be lent by US customers, then had the withdrawal date 30+ days after. BFX decision making always seems to be this frenetic ill-thought out policy that screws some portion of their customer based needlessly.
They did issue a statement giving 26 days notice.
https://www.bitfinex.com/posts/227Announcements > Update: U.S. Individual Users October 16, 2017
This message is further to our announcement of August 11, 2017, with respect to terminating our business with U.S. individual customers. As indicated in the announcement, we are terminating trading, deposits, and withdrawal functionality for U.S. individual customers by no later than November 9, 2017. U.S. customers are already barred from receiving financing from other users on Bitfinexs peer-to-peer financing platform. This restriction will remain and, in addition, U.S. individual customers will no longer be able to provide financing on Bitfinex effective November 9, 2017.
All U.S. individual users must make arrangements to withdraw their Digital Tokens by November 9th.
U.S. individuals holding Recovery Right Tokens (RRTs), if any, which relate to the exchange of now-defunct BFX tokens to equity in iFinex Inc., may, starting on October 27, 2017, sell all of their RRTs on the exchange, if they so elect. This is an exception to the general terms of use for RRTs. U.S. individuals are not permitted to buy RRTs during this time period. All terms and conditions relating to the sale of any RRTs remain in full force and effect and are deemed to apply to the sale of any RRTs by U.S. individuals or otherwise. Any RRTs remaining in the hands of U.S. individual verified customers after the November 9th deadline may be sold through Bitfinex on an OTC basis through special arrangement with us.