You're taking a look at countries that have implemented 'socialism' and ended up with what amounts to dictatorships. Do you really think that Communism as envisioned by Karl Marx included someone like Stalin, or the corrupt officials that inhabited governments in the Eastern Bloc?
For all of the rhetoric that the far-right sling around in the US about the evils of Socialism, even they have Socialist policies. The government regulates, picks winners, keeps companies afloat that are 'too big to fail,' Social Security and other welfare programs, etc.
Don't confuse situations where neighbors reports other neighbors who then 'disappear' as having anything to do with Communism or Socialism (or than that they have historically resided together).