This sums it up well. Too risky.
Would be nice to run up a bunch of debt then see it wiped out by price fluctuation.
Which is why we don’t have crypto credit cards
I don’t know, it seems like if thousands of cardholders owed balances, each accrued at different BTC values, then it would all sort of balance out for the card issuer. There must be a way to express this mathematically but it’s over my head.