I knew somebody who was taken to Sachsenhausen in late 1944 (He was a chemical worker and when Romania joined the Allies, on August 23, he was in Germany undergoing training at the AG Farben plant where they promptly arrested him under charges of "sabotage" ) and survived, only to be re-arrested by the Soviets after the camp's liberation and thrown back in a mere two month later due to his noted anti-communist views. He said that conditions under the Russians were far worse, with severe overcrowding and far smaller rations. He eventually gained his freedom in 1950, only to be labelled as a "class enemy" back in Romania and lived his life under close scrutiny from the "Securitate" (Romanian Secret Police during communism) until the Revolution of 1989.
Heh, not really relevant either, I admit. Though really, a better phrase might be, "New boss, same as the old boss, but with new prisoners." An ironic outcome for the Nazis who were arrested and kept in the camps (of their own creation), but an incredibly unfortunate one to those who were arbitrarily arrested due to mistaken identity or being "political enemies". Still, after such a brutal war, it's not that surprising, unfortunately.
Oh, you'd get no disagreement from me--it was incredibly unfair to them (though contrary to the popular image, not _all_ of them were considered "guilty"--many were welcomed as heroes and made up the new military elite during and after Stalin's time). Too many were blamed unfairly by far.
It was an unfortunate result of the nature of the war, and the tendency of captives taken by the German Army to either be annihilate in camps or shot on sight (as with the "Commissar Order"). Those who survived that horror were looked at with suspicion. Combined that with the huge number of actual collaborators--such as the volunteered White Army/Russian Liberation Armies--and you have an atmosphere of paranoia and suspicion.
I have no love for the Soviets during the war. Then again, I have no love for the Germans either. My family lived in the East, stuck in the German camps for most of the war. Were liberated in late 1944 and then got the hell out of Dodge to the American sectors post war.