If you live in a developed market with no need for the utility bitcoin provides, then to you bitcoin is only a waste of energy, and energy generation is a significant contributor to greenhouse gas emissions. In this case you see it as all cost and no benefit, and any counterpoint goes against your dogma, which is 'inconvenient' or irritating
> a waste of energy
Not if the energy is wasted anyway (or worse, costs money to get rid of).
> a significant contributor to greenhouse gas emissions
Except if it is wind power.