Post Type Discovery

I objected today to accepting PTD as a working draft because I have some 
open questions about it, and not because I think there's an intrinsic 
problem with the doc. I'm not sure if they're appropriate for the 
document feedback section, since they're less about the format itself 
and more about the relationship with this group.

  * *Does this fit with our charter*? In other words, can we argue that
    taking on this work as part of the WG is related to the work that
    we're supposed to be doing?
  * *Do we have the bandwidth for it*? As a working group, do we have
    the time and attention to work on this document and move it forward?
  * *How does it relate to our other deliverables*? Is it a replacement
    for the JSON-based social data syntax, or kind of a preprocessing
    best practice?
  * *Who will work on the document? *Who will be shepherding this format?
  * *What are our success criteria*? Are we intending to publish this as
    a Note or Recommendation? Or is it there to inform implementers of
    the other specs? Or are there other goals for continued work with it?

I really appreciate the effort that's gone into this document, and I 
think it's well-written and has a lot of value. I just want to make sure 
that we know the work and responsibility involved, if any, before we 
adopt it into the group.

-Evan