The quote is mine, but Stalin had the same opinion: the past taught him that Poland only caused troubles for Russia and that it was better off without Poland , and the future (August 1944, June 1956, 1970, 1981 ) proves that my quote is correct .What I quoted were Stalin's exact words from the Yalta conference. Yes, not believable and again history speaks for itself. My point is the "poison chalice" quote is yours, not Stalin's?
Besides, if Stalin did not think that Poland was a poisoned chalice, why did he leave Central Poland with Warsaw to Hitler ?
Before, during and after the war the Cheka killed tens of thousands of anti communist/anti-Russian Poles ( there were a lot of Katyns ) and,what was the result ? The result was that the anti Soviet/Russian hostility in Poland was increasing .