The total USDT issued in Tron is increasing kinda fast too. It was a around 100m USDT around a month ago, now it's on its way to 400m USDT.
What did you expect from Tether and Justin the lier. Tether is hiding their wealth trying to make Tether and i wonder how much they made in the Ethereum network. Its not shocking for bitfinex they need money to pay their lawyers for the court hearing.