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
Poloniex is the same...It's even more dangerous because the Feds(Poloniex is registered in USA) can shut down their website anytime. Poloniex is not licensed as MSB as the US law requires. We saw many exchangers closed and in jail because of that....
i left Poloniex a long time ago when i realized this and they started showing some scary signs and also asked for personal information in order to trade altcoins!
besides they have been doing a lot of shady things with ethereum from the start and they went offline, closed deposits, .... when eth was being dumped multiple times to prevent crash!!
very good decision. sooner or later(max 6-7 months) Poloniex will be closed