Stay out of Bitfinex. That exchange will be collapsing sooner or later. They have been printing USDT without fiat USD backing and they are taking advantage of the fact that the large altcoin exchanges like Poloniex and Bittrex have altcoin/USDT listings.
What they plan to do with all that unbacked USDT, we dont know. But I think the regulators will be giving them a cease and desist order for issuing an unregulated currency.
We don't know
for sure that the Tether printing is un-backed, although it's pretty likely. Bitfinex has already lost its Polish bank account, so how exactly is Tether getting $100 million wires on a daily basis? It's obvious what they're doing with the USDT injections. Every Tether grant gets sent directly to Bitfinex and large BTC markets buys usually happen shortly after. I remember 2013, and watching USDT is a bit like watching the Willy bot.
Until theres an audit of the $2.3 billion that Bitfinex claims thats backing the issuance of all those USDT, I wont trust their word for it.
Having that said, I also heard that their auditor left lol. That doesnt look good.