Prices are $650; the exchange is now ok.
Complete scam.
I said before Bitfinex came online again :
"You will see that once BTC is stable around 650 USD, Bitfinex website will be online."That happened

They closed the website while their clients were selling. They made a fortune by using fraudulent tools yesterday, these scums.
I didn't know bitfinex owners are anonymous and it is unregulated.
At least i know poloniex is registered in the US and they have KYC / AML policies