Does anyone actually believe Tether received 305M $ in wire transfers in the last 5 days?
Yes, only a handful of people are determined to see everything in a negative light.
Institutional investors are even hesitant about the regulated futures so far and the trading volume at the CBOE has been pretty dismal.
That is to ignore that CBoE is a very small futures exchange and the contract is only supported by one broker so far. Also, it rather misses the purpose of futures. They are an instrument for trading and hedging primarily and are not used by investors.
Yet people claim that investors are wiring 305M $ to buy Tethers in order to buy cryptocurrencies in just 5 days?
Why not? Investors that actually want to hold Bitcoins cannot do it via the futures.