There was also a big issue of huge cooperation of the clergy. Don't know the concrete numbers but Anne Applebaum explains it in her "Iron Curtain: The Crushing

There was also a big issue of huge cooperation of the clergy. Don't know the concrete numbers but Anne Applebaum explains it in her "Iron Curtain: The Crushing of Eastern Europe". Our catholic church was the most penetrated one in the whole Warsaw pact. This means people literally didn't have anyone to trust. Just try to imagine that. Three generations of people shaped by this feeling, ending up completely paranoid or indifferent/escapist.