The problem is that 'good faith' means different things to different people. I practice good faith in different ways with different people as well. For example, I have non-anarchist friends who consider themselves nihilists and I can say almost anything to them, share my adventures on the toilet, my sexual discomforts, and equally, talk about the weather. In good faith we call each other on shit, fight with each other brutally, and yet, in the end, we share--I feel--a relationship built on good faith. What we share is a respect for the tolerance of each others perversities but on the condition that we recognize when we've gone too far. I can say that these are my best friends. Zizek, echoing Bataille in many ways, says that this is the foundation of friendship and dialog. I happen to agree with him.