Stalin played lip service to Communism, but it was just about Soviet power, he regularly purged members of foreign Communist parties. Even pretty much gave Hitler carte blanche to wipe out the German Communist Party.
It was pretty good lip service, considering the rise of Communism worldwide from the 1930's through the US NY Times whitewash and demonization of "McCarthyism" in the 1950's, all Soviet promoted.
The Communist purges ALWAYS occurred in all Communist systems as that the first thing they do is get rid of anyone that might be able to replace the ones IN power. It's SOP for Commies to purge Commies.
Even pretty much gave Hitler carte blanche to wipe out the German Communist Party.
Yeah? Like Hitler (the Communist that took Germany for himself rather than turning control over to the International Communists in Moscow), needed Stalin's permission to rub out anyone threatening his personal (used to be Communist) Socialism.