No one would. If there is a ban it would be a ban on contact with the regular economy. It would be a ban on buying/selling dollars or goods/services with BTC. So you’d stop computing because if no one (or not enough people) can use the result of the computation there is no economic compensation for it.
To ban mining itself (calculation) you could only address things like construction permits or environmental permits for industrial mining operations. That’s also easy, and in no way interferes by saying what anyone “can compute”.
East Europe. Also it won't be considered a Western country, even if you say it's in the central Europe (with the latter starting at the Ural mountain). The west is more of a cultural term than geographic one, e.g. Finland is West, but Estonia, Latvia and Bulgaria are not, even though their capitals are roughly at the same meridian... and Estonia & Finland having the same song as national anthem.
All 4 of them (if you count Poland, counting Finland or Sweden would be even harder). Here is a Latvian joke about Estonia: "no sex or future in Estonia". I have been in pretty much any European country, minus Portugal. No idea where the racism idea comes from, though.
This is as coherent as talking of "black culture". There is no west, people who use it are chinese to dismiss everything not chinese (so Japan is western) and the US uses it to force us to join their stuff.
Im in China, yes. It s not Asian, it's not African, those people seem to live in the chistriano-muslim vector on the west of China, anyone here would say they're western.
Sorry but English is spoken all over the world. When I speak of the president, I mean Rutte. If someone in India (English is an official language there) speaks of the president, I'm sure they mean someone else. If English were to be beholden only to USA-centric concepts, we're going to need a new universal language because that's going to be super annoying.
And even in "the west" (by which I would mean the top ~40 countries by HDI), "the west" is a poorly-defined term.
Edit: turns out Wikipedia has an article about "Western world", which makes it quite clear that the term is vague. Apparently the original meaning was "Western Christendom", so it's a religious thing. TIL.
The West / East divide is fundamentally a European concept, because it has existed there in one way or another for almost 2000 years. The West is associated with Germanic peoples / languages, Catholic / Protestant churches, West Roman Empire, capitalism during the Cold War, EU / NATO, and Europe. The East is associated with Slavic peoples / languages, Orthodox churches / Islam, East Roman Empire / Ottoman Empire, communism during the Cold War, Russia, and Asia. The more boxes you tick, the more strongly you are in that camp. Countries far away from Europe are only Western or Eastern by extrapolation.
(In a similar way, the Europe / Asia / Africa divide is fundamentally a Mediterranean concept. The farther away from the Mediterranean you go, the less sense it will make.)