Sometimes we have to step so far back from our shared creation that we're not even talking about how our Space Opera reality functions, we're talking about how we, the creators function.
This is where we do that.
Herein might be found genre settings; house rules; descriptions of which topics or roles are available to what creators; completely OOC notes on plot points and dangling threads; pointers to references created by other people; and, maybe, eventually, an index of Potluck Meal Themes from the past and into the future, whether that was "Two Jedi Kitchen" or "Shards of Infamy Bar and Grille" or the still-hypothetical "Mystic Mob Investigations Presents:".