What I heard is cigarettes in Russia are much much cheaper than in other countries. This moment might be important.
And yes, many smoke everywhere, especially under signs "Smoking is prohibited here".
In buses, trains, planes. At bus stops. In подъезд's. In the elevators.
Recently I stayed at hospital. The ward was full of smoke, even at nights.
If you like me cannot tolerate tobacco smoke, you have to suffer.

However I see how more and more people are trying to quit, this is trend, definitely.