Likely a combination of the energy consumption for something not entirely recognized as usable currency and its instability of price as a byproduct of it being a not entirely usable.

Tech is also pretty dirty unfortunately, so while it’s morally ambiguous for us to buy/build computers ethically sourced we can at least use them in an effort to use them ethically (like using the parts of the animal). We’re currently in a place where we can’t really avoid computers, so using them respectfully should be the goal. Given the inefficiency of energy, immoderate conservation (i.e. using old hardware that would be landfilled) by over-purchasing everything available, and how these chips came to exist in the first place it does seem a little more difficult to happily engage in this particular form of currency.

Not OP, and personally I’m not against the idea of digital currency and I would personally accept any form of currency given to me, but I can understand wanting to avoid it. It’s also not entirely private either, it’s just as public as anything else just with the “benefit of the doubt” that washing it has.