Second, I'm not right-wing nor is "critisizing extremeist liberalism" right-wing propaganda. The real propaganda is you assuming "the other side is attacking" when someone constructively criticizes a group you belong to.
Third, "It cannot get extremely left-wing no matter what." you obviously know nothing about Reddit and Digg and what happened there. You are the perfect example of what I was talking about. Groups that protect the extremist sub groups within them. Denial, is almost always the first defensive method used to prevent discussion over what might be wrong with a group.