2. The USSR was definitely founded by Bolsheviks, the leaders of the 3rd "Communist" International. They even went so far as to put the word "communist" in the party's name, and kill dissidents.
3. Anarchism leads to a lawless society in which the strongest will rule. It leads to Dark Ages, as it has done before. It may be moneyless, but it will have very clear class and ownership concepts.
4. "It wasn't true communism". Just like China, North-Korea, the GDR, etc. Sure. If it wasn't true communism, you can draw the historical dialectic conclusion that we cannot reach true communism.