Well, I don't, but that doesn't seem like the right rule. I also certainly don't think that, say, genocide makes the speaker (whether Goebbels or a modern-day a

Well, I don't, but that doesn't seem like the right rule. I also certainly don't think that, say, genocide makes the speaker (whether Goebbels or a modern-day advocate) look good, but that hardly seems like a reason to permit people to post advocacy of genocide! The very definition of extremist ideologies is that they are extremist, and that reasonable people who haven't been infected with it don't agree. But - by and large - we don't see that as a reason to allow open advocacy of extremism. Clearly Goebbels had a target audience in mind that he thought could be convinced to agree with him. So I think a rule "You cannot post things by Goebbels that advocate Nazi ideology" makes sense, and I think a rule "You cannot post things by Goebbels that advocate Nazi ideology, unless reading and pondering that document would leave the average reader less convinced of the merits of Nazism" does not make sense.