Earlier quoted context omitted.
> what Bitcoin has done to GPUs I understand your argument, but Bitcoin hasn't been mined on GPUs since 2011/2012. Broaden your argument from Bitcoin to "proof of work schemes" more generally, and from GPUs to "profligate (mis)use of resources", and it will land more effectively. If you are against cryptocurrencies more broadly, inclusive of proof of stake and other more recent approaches that aim to address the reso…
I am not against proof of stake, exactly. But proof of stake has been around for a long time, and is a very small part of the crypto market right now. I don't really understand why, but until proof of stake is able to get adoption, I don't think the existence of proof of stake is a very good defense against the accusation that cryptocurrencies are wasting resources.
At least for miners in a PoW system, there’s a pressure for some liquidity by miners selling to cover the mining costs.