In my view, this can be a little bit of a technical problem where both sides - the miners and the government - are not in agreement on how to properly compute, report and pay the right amount of tax. Of course, we all understand that cryptocurrency mining is a big business and must be treated as such...surely this is not anymore a hobby of an enthusiast who is just trying things. I am sure the Swedish government is requiring operators to fully register and must be transparent with everything they are doing and so when all records are scrutinize there are discrepancies found. The best thing to do here is to ask the government for a possibility of a compromise as $90 millions can be a hefty sum to pay for these affected 21 crypto miners. On the part of the government, they should make things so clear from hereon how to do taxation so there will be no similar issues later. We all know that the government is always looking for the correct amount of tax to be paid by business owners and it does not matter if one is into cryptocurrency or not. Everyone has to pay their fair share of taxes.