Hi. I am a beginner and have a few questions. First, I am very concerned about many scary reviews about Coinbase's lack of customer service and other issues. But mostly, I want to buy ETH to fund an offshore ***** trading account. This is not illegal at all for US citizens as long as they properly pay their taxes, which I shall. But Coinbase's terms of service prohibits such uses of cryptocurrency. If I sent my ETH from Coinbase to my Trezor wallet, and then to my offshore ***** brokerage, could/would Coinbase ever know? That is to say, could they track where the ETH goes after is was sent to my personal wallet? Thanks!