Or would you say, instead, that the PPMB tend to put the community first and the text second? Because I'm thinking that the SPON may put the text (with "text" to include fannish culture/history) ahead of the community itself: Knowledge of the text is key to being a part of the community. PPMB see the community itself as primary.

Hmmm. [goes off to think some more & post in own journal]