Income tax generates tax revenue. Whether it's "just as well" as other forms of taxing is debatable. In at least some countries, wealth is taxed less than labour, which increases a class distinction. Less income taxes in favour of other taxes may redress that balance.
Or it may not - economists and ouija boards can give you predictions.
Sure, but I do not see the purpose of creating a special tax scheme just for copyrighted works. If you want to hit everyone with a wealth tax, then do it the same way for all assets.
Income tax generates tax revenue. Whether it's "just as well" as other forms of taxing is debatable. In at least some countries, wealth is taxed less than labour, which increases a class distinction. Less income taxes in favour of other taxes may redress that balance.
Or it may not - economists and ouija boards can give you predictions.