Recently joined a smart trading system in coinbase with stable profits, using tokens Tether, investment, which is profitable?
Just based on your description, I don't even need to open Google.com to know that what you're describing is a straight-off scam. A heavily regulated company in the heart of regulation-land(the United States) isn't going to start such a scheme. Knowing that the government would want control, a non-custodial wallet is probably the farthest Coinbase can go as to releasing a "non-controlling" product.