On May 5, Ryan Selkis, founder of cryptocurrency research firm Messari, published a tweet saying: "The difference between Mt Gox and Bitfinex is that the former is an unmanageable, often hacked and bankrupt enterprise. The latter is the only one. One of the remaining “cowboy” exchanges. Their promotion of Tether (USDT) is worth learning from Okex, Huobi and Binance. The gradual withdrawal from Bitfinex is a mixed blessing for those who want to find a safer alternative. A good thing is a bad thing for the early bitcoin spirit of "get rid of the bondage." Analyst Tom Lee replied to the tweet: "Agree that Bitfinex seems to have a better customer reputation."