Tether might be a scam, quick sell your bitcoin for Tether! /bitfinexTraders
That's what I was about to comment. I mean if Tether has a problem, the rational thing is to dump tether => buy bitcoins => exit the exchange asap.
Obviously, demand for bitcoins should move btc price up as tether is dumped.
People are in tether to avoid bitcoin. So a rational gambler would indeed buy bitcoins but would dump them later for cash.