I am pretty sure you can game the tax systems by earning all your income while offshore or in a tax free jurisdiction and not staying in any particular Western country for more than 179 days [does not work for US citizens]
So fly to Dubai to cash out your BTC and then go skiing for a couple of months, rinse repeat.
The problem that I have is specifically with owning property in that kind of situation. I don't want to go from hotel to hotel or Airbnb to Airbnb for the travel part. But if I could just own two houses and have each of them set up as a fully functional base then I would be perfectly happy to just fly over from one to the other every 6 months. Just haven't found anything specific regarding this edge case yet.
I think in Thailand you have to be a citizen to buy...you can lease, which is what most foreigners do. Actually most marry a local and the wife buys the property.
The citizen part was what I was worried about. Seems to be that case everywhere. I know that foreigners can buy property in Japan, but it seems like that is only for commercial purposes (such as renting out). Suppose using family could work though (in case there are no decent countries that allow non-citizens to own property for private use).
Sweden doesn't care about your citizenship, anyone can own property, even people without citizenship. You would have to pay real estate tax, but that tax had a cap of 914 USD last year. And in many cases you pay less, it's adjusted for inflation yearly. And everybody speaks english.