This is an interesting point. I’ve talked about the notion of “transferability” in mathematics, as an expectation that all mathematical arguments are independent of trust on the author. (“Probabilistic Proofs and Transferability”, 2009, Philosophia Mathematica) I’ve suspected that this may be relevant in philosophy and the humanities generally. I hadn’t considered yet many explanations for why a discipline might choose to organize itself around this concept, other than a general deprecation of trust. But this seems to get at a possible explanation. Here’s the text of my paper, in case you don’t have journal access:
http://dl.dropbox.com/u/10561191/Published/ProbProofs.pdf

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