Here's a crazy question...
Could a person in Russian legally buy the game-key and then just flat-out GIFT it to you?

I'd guess they'd have to have to buy it through Steam to be able to GIFT it directly to you, right...?

EDIT:
I don't recall being given the option to GIFT to someone, when you decide to ACTIVATE a Steam game-key you've gotten from a 3rd party place - i.e. Amazon DVG, GMG, Gamersgate, GameStop PC App (Impulse), etc.