Holy mother of Mahz, that's a long post. While nowhere near length (I don't think), Wolf is running a similar thing; it's very close-quarters with a limited cast of players and NPC's, so PC-PC or PC-NPC interaction is a constant, and I've really encouraged players to do it 'my way'; that is, to make sure that the completed posts are only from one POV - and they're lovely, so they do. :P

That said, I discourage them from putting 'credits' at the top as in your example, along with any other OoC content. None of it seems necessary; we know we won't Godmode each other, and including OoC information seems to be, by definition, interrupting the flow of the IC as one long narrative. Do you not feel* that including those credits undermine the effort that has gone into crafting a continuous work?

I'm reminded of an exception, which would be My Immortal, the infamous Harry Potter fanfic (which I urge everybody to read, for the comedy value). There is a kind of meta-narrative in the author's notes at the start of each chapter, which manifests in the story - though I wouldn't say this typically applies to OoC notes in an IC section in pbp.

* by which I mean 'I'm keen to hear your opinion' rather than 'I'm rhetorically asking about what I consider to be a flaw in order to make you feel bad'