Stalinists are probably like "lulz, but he trots are traitors!!111"
Never forget 1923, KomIntern under Sinowjew, back then part of the Stalin fraction, betraying the german workers by failing to call for a general strike which could have paralyzed the whole country and possibly taken over state power.
Never forget 1927, Kuomintang support of the SU, later mass slaughter of communists by the Kuomintang.
Never forget 1934, rise of fascism due to failure to unite communist workers with social democratic workers because of "social fascism".
Never forget GPU terror aimed at communists.
Never forget Gulags housing old worker bolsheviks.
Never forget Stalin declaring socialism to have been reached, simultanously revising Marx' and Lenin's understanding of socialism.
Never forget Stalin justificating cases of rape done by the Red Army.
Never forget criminalization of homosexuality, abolition.
Never forget closure of mosques, effectively revising the "freedom of religion" of Lenin.
Never forget reinstalling the old bourgeois military ranks.
http://img861.imageshack.us/img861/1411/stalinlenin.jpg
Stalin. What a nice smile you have. But there's someone looking down from above, an old man you've probably already forgotten, since you've spit on his grave back then and many more times through you being the leading figure of the bureaocracy, the symbol of what has become of the worker's state.
Does he smile?