Because if Russia the state buys it, it is very difficult for the same state to keep convincing the civilians that crypto is a giant American conspiracy meant to protect or pump up IS treasury. 

spiderman

econ

Russian Central Bank Selling off Gold Reserve

“Bitcoin is for enemies” I did not say that the Russian people are buying Bitcoin or that the Russian government is urging their people to buy it. I was talking about Russia the state. If you believe that Bitcoin is real money and the best money and want to hold it to benefit you and your family, why would you not think that Russia, the state, would not want to hold it to benefit it and it’s family, it’s oligarchs and in a minimal way its people 