According to Reuters reporting, Phil Potter, chief strategy officer, has left Bitfinex. Potter was quoted as saying this had to do with Bitfinex moving away from the US market as he is based within the US.
I would argue this is one more reason why Bitfinex should reconsider opening to US customers. The regulatory impact of not serving US customers is small as the US will get jurisdiction if they are involved in big enough shenanigans but are excluding what is by far the largest segment of the market.