Tankies don’t usually believe that Stalin or Mao “did nothing wrong,” although many do use that phrase for effect (this is the internet, remember). We believe that Stalin and Mao were committed socialists who, despite their mistakes, did much more for humanity than most of the…
I may have been unintentionally mixing stories and confusing the subjects. I'm sure there's something there but I'm not sure what off the top of my head right now.
The name can be swapped with plenty of others and the point remains the same though. Thomas Edison, Obama, any Bush, etc etc