I mean... wasn't coinbase sort of scammy to begin with? Several years ago I gave them some USD, turned it into BTC, saw the value of the BTC go up, but when I tried to cash out was told that wasn't a thing that was supported by their platform. Later I was told I could apply for a $399/year credit card and could partially pay off the balance with BTC sale proceeds. I'm sure this was all disclosed somewhere in the terms of service I clicked through, and I only lost $1000 to their scheme.
But I've always wondered why people think this is how investment vehicles work. I monkeyed around with stock market bets and even Robin Hood allows you to cash out of your positions.
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