The Soviets themselves never claimed to go full Soviet either. They were saying the ideal is Socialism and that Communism was just a step that direction. It gained ground I believe because of WWI. Russians and Ukrainians I think just got fed up being used for cannon fodder for German artillery, Jews got upset about the pogroms, and Socialism as an ideal had been making its way around "Enlightened Europe"--at least that is the way Russians saw it. I heard this once before and I think that it is true that the whole problem was with the "General Will" and socialism based on Rousseau instead of Democracy based on John Locke. But in any case I do not see how that was any possibility for Russia in 1917--or even today for that matter.