There is a long list of people who have been scammed by coinbase and the many other exchanges. I had about 12 btc in a bittrex (another "safe" us based exchange) account that I signed up for with a pseudonym. Then one day around the time btc was at $19k they decided to lock my account until I give them a selfie showing my passport and other scans of id. They know this is impossible and will not let me change my basic details (citing some sentence in their ToS and how they are trying to protect me). I went the lawyer route but it turns out there is nothing you can do legally if wording in the ToS says any deposits belong to them, they are not responsible for anything, can't be sued etc. Also no one really cares about bitcoin or other cryptocurrencies in the legal sense. So good luck trying to get your bch. This turns out to be a double edge sword because since then I have made use of some of the exploitable bugs in several cryptocurrency wallets held on exchanges and have transferred back the amount I lost plus much more. Didn't even bother to use a proxy or anything because I know there is nothing that anyone can do about it, go ahead and send the internet police to my house maybe that way I can finally get in contact with them to investigate the btc that was stolen from me.