Earlier quoted context omitted.
Using clean energy for anything still increases the total demand for electricity which is going to result in more dirty energy production no matter what.
Yeah fine, but then it's still completely consistent that if your goal is to decrease overall energy consumption, you would find ways to curtail energy intensive activities which provide little social value.
E: Can't reply below, but here's a very real argument for you. It's completely absurd to bikeshed about banning an activity that doesn't even exist in Sweden at any meaningful scale. Discussing whether or not Sweden should ban cryptomining is utterly pointless when nobody is (planning to start) mining in Sweden at any significant scale.
It really does matter what government officials spend their time on, this is an utter waste. To suggest that they're doing a good thing here is just incredible.