hmm... seems I have to upvote every comments of yours. I think you have catched something bitter and venomous. It was OK, with the tax man. I sold my bitcoins December 2017 and had a year of untroubled atristic work. But the Danish tax authorities are in a mess and nothing works for them these last 5 years, so they are a bit behind when it comes to crypto. Ha accepted my explanations and I always expected to pay a prt of it anyway. Scandinavia is running on high taxation.