I'm sure that if someone were to gift you one Bitcoin you would not refuse it on the basis that it's just an ID number pointing to pretend money with zero intrinsic value, would you?
Sure - today, as the situation stands, I'd sell it in a heartbeat, because there is still a vast supply of greater fools. That doesn't mean it has intrinsic value, nor that it would be an ethical / moral choice. Just means that I have loose enough morals to be happy to take an idiot's money.
When suddenly it loses its popularity and/or supply of greater fools, it'll fall apart, and I'll have taken some poor sap's actual money, even if it was delayed / distanced / distributed by some thousands of layers.
When suddenly it loses its popularity and/or supply of greater fools, it'll fall apart, and I'll have taken some poor sap's actual money, even if it was delayed / distanced / distributed by some thousands of layers.