I agree with you about "monetized global warming" about Proof-of-Work, but there are also Proof-of-Stake, and Proof-of-_____ (insert other assurance mechanisms) currencies, so not all are monetized global warming.
Not every crypto is a PoW.
Regarding "the debt", I advise you hear some Warren Mosler about his Modern-Monetary-Theory.
I don't agree with everything he says, yet still he is more truthful and less misleading than the gold and silver and debt doomsday crowd.
I am for disbanding central banks in their current common model.
Cryptos are fiat as well.
I hope you will rethink my previous comment, and stop monetizing spammers that joined this platform only to take out of it.
I too joined in intention to benefit myself, and when possible and appropriate, particular (only those deserving!) others too, and putting fiat into another fiat asset that is being inflated as well, and is bound to keep plunging in value (barring a few spikes due to a few rich and dim-witted individuals) is not benefiting myself, and yes benefiting mostly the serial mass spammers, whom never put anything valuable into this place, not content-wise, not maintenance-wise, and not cash-value-wise.
They only overload the blockchain and make its maintenance impossible sooner than without them.
Have your work backed up, make your public profiles at other portals visible, so your few real followers can find you once this one goes lights out, and please consider stopping monetizing pyramid schemes and monetized spamming, even if you think you can afford it.
Oh, and George Donnelly www.youtube.com/user/georgedonnelly , a fiction writer like you, and a former steemian with quite a bit knowledge about it changed his mind about it from enthusiastic to dismissive.
Just watch how much content he uploaded to youtube about it, so I bet he could tell you why it is bad.
He is very nice and responsive, so you should find the point where he changed his mind, and if you have question left after then, he probably will tell you why it's bad.
And recently I read that both jerrybanfield and I think blocktrades or another user recommended using Ethereum or LiteCoin as an intermediate instead of BTC, due to lower transaction fees, but stopping wasting your cash is still better than wasting it more efficiently.