>>515542179 (OP)
>institutions which accept rubels decrease in number thus ruble is devalued internationally but frozen domestically after an initial drop due to internal policy
>acquire foreign currency which can be exchanged for rubles at preferential rate whenever
>if something happens to the rubel you can still jump ship with your foreign currency
So it lets you do business abroad, is still accepted in the Russian financial system, and insulates you from risk in cast of a catastrophic failure of current internal Russian governance. Seems like between chugging gallons of vodka some slavs can do basic fucking math. OP as always just sucks cocks.