Now, the catch 22 is that the taxman in my country is still not technically sophisticated enough to be able to determine your holding period (although everything is public), so everything is still theoretical.
Germany, apparently, has similar thing. Two years and a day, and you're tax-free. (1) Spend 6 months there to get tax residency, (2) declare it after having been hodling for 2yrs + 1 day, (3) profit (tax-free). Never checked it myself, so it's purely anecdotal.