Note that as far as I know this only applies to private buying and selling, if that is the case people which frequently buy and sell crypto also have to be care

Note that as far as I know this only applies to private buying and selling, if that is the case people which frequently buy and sell crypto also have to be careful that their doing is not classified as commercial. E.g. there are similar rules for privately selling art (through it's I thing noticeable longer then 1y) and there had been cases where people where not careful enough and it was classified as commercial activity.