I believe the roots of this mistrust between people in Russia and the whole Eastern Block can be found well explained in "The Gulag Archipelago" by Solzhenitsyn (http://www.amazon.com/Gulag-Archipelago-Aleksandr-Solzhenits...)
Is this some knee-jerk reaction or something? Russia-gulag and all? For a foreigner it is permissible, not so much for a Russian. I think we need to overgrow this if nice things are to be had.
During the civil war and afterwards, how much the fate and life of common people depended on the whim and 'perception of loyalty to X' ? In order to prosper (or even survive) your allegiance would have to be flexible enough to adapt quickly, or you'd get eliminated. As the saying goes, 'the tall poppies get cut first' - no matter if you were for or against the revolution.
1917 was a result of picking a fight with authority, but the aftermath of 1917 was to eliminate anyone else who'd pick a fight with authority - both outside and within the revolution.
This is what I mean by 'keep your head down'. There's a curse "may you live in interesting times". Living in such times teaches you and the whole society to be mindful about what you say, careful if your beliefs are perceived as proper, and not to pick a fight with authority.
I don't think what you are describing is in any way specific to Russian Revolution and Civil War. If reasoning like that is justified, you can 'prove' the same thing about any society that lived through a social calamity.
There were bloody purges after 1905 enforcing 'summary punishment' against, say, everyone living in a specific village, in order to make a warning for others. My local area lists 500 official executions of revolutionaries, but 2000+ 'collateral deaths' happened in the process.
1917 was followed by (1) a civil war, (2) class warfare - reprisals against millions of people where the fact if you were killed or deported was determined in part by wealth, but in part by your connections and local denouncements. (3) internal conflicts such as Tambov rebellion which also meant that you can easily lose everything for something your neighbor did.
Most societies that lived through a social calamity did not endure long periods of internal treachery affecting not a small prosecuted minority but huge parts of population - well, Pol Pot and China Cultural Revolution did, but I'd argue that they had similar effects on their societies.