Well, i think that it is a good thing that Ukraine actually imposed taxes on crypto currency. For one thing it is not a ban but an acceptance to Crypto currency. This also means that holders are now subject to the government's protection and any fraud would be dealt with the full force of the law. I juat hope it is how i said it is.
Imposing tax or regulating is much better than restricting and then planning to completely ban crypto trading as well in a country which our country is planning to do as recently being heard. This will increase people to use it if the tax is lower, now if the restriction on tnx and tax is way too higher, then it's similar to banning it.