I’m glad online currencies exist as a technology but I’m not glad an energy intensive one is currently #1 when at the same time the entire tech is taken over by investors/speculators instead of users.
And if calculations about Bitcoin’s footprint are true it uses up as much energy as Argentina. An entire country. I don’t think that for the use Bitcoin gets in the developed world it justifies energy uses at that level. It’s far from a small little thing to not care about.