How to have a Debian meeting without turning into a secret cabal (redux)

Brief status update on my past RFC about Debian meeting sponsoring guidelines. I've now actually drafted the guidelines, integrating the received feedback.

The result is now available on the Debian wiki at Teams/DPL/SponsoringGuidelines. Feel free to comment further and improve the wording. I'll then make the text "more official" by announcing it to -project or d-d-a, as suggested.