Earlier quoted context omitted.
It’s just proof that you didn’t forge a scarce commodity. The value isn’t related to the wasted electricity, but the hard problem the electricity was used to solve. Love it or hate it, it makes sense.
It doesn't make sense because it's a negative-sum game. The only thing people are actually using Bitcoin for right now is to sell to other people for more than they bought it (or maybe to sell for less than they bought it to launder money). The total amount made by the buyers and sellers is zero (because every buyer is buying from a seller), and there has to be a constant inflow of new buyers just to cover the cost o…
But they have utility. At this point I think mostly for gamblers and criminals as you said yourself.
But they also have utility for all sorts of tinkerers, and via that route they may eventually become more useful to the rest of us.