What putin fails to see is that he cannot police the world let alone his own country.
if anything this just makes bitcoin more valuable in russia. As it will be traded as contraband.
Making things illegal doesn't make them go away, merely forces them into shadier hands.
its only illegal if you dont register as a money surrogate exchanging business.
if an individual doesnt register, he van be fined $500
if a bank CEO doesnt reveal and register their money surrogate exchanges. they can be fined millions of ruble or get prison time.
in short. its the same thing as in america.