Well, mining Bitcoins is a net negative of wasted energy.

Every bit of computer power beyond the minimum threshold of efficiency needed to operate the transactions and database is a net loss.

Peak efficiency of the Bitcoin mining network would be about 3-10 basic desktop computers. Instead Satoshi Nakomoto's Proof of Work will waste more and more energy with nothing to show as time goes on.

If owning bitcoin were suddenly illegal, then people might be giving you money to take their bitcoin....

New business idea: BitDump - the easiest place to store your negatively valued bitcoins.

Although if you take into account the cost in electricity that has been turned into heat, that does kind of represent s massive negative. That sacrifice of power is only worth it (sort of) if Bitcoin retains more value than the electricity was worth. Of course if cryptocurrency really does become worthwhile as a currency, it could be an acceptable price to pay.

How many people think that cryptocurrency has a real future worth that expenditure? I would guess fewer everyday, but I could be very wrong.

it can be hacked or compromised. at which point it becomes imaginary