You can buy Ethereum with the 30 USDT or another altcoin. Then you can make withdrawls with that. USDT is kind of sketchy long-term. I'll certainly accept it as a bonus, but I won't hold it. For stable coins, I feel TrueUSD has better transparency and business model. USDT still can't get a proper financial audit done nor will they disclose how they go about releasing all this extra USDT. Its almost like they are printing digital money...!
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