I post a section of story, followed by a brief summary of situation. I then either call for suggestions for actions or throw up a poll depending on the openness of the particular scenario at hand. A brief time passes to get poll results/gather inputs, and then in the next segment, what's popular gets done.
The story would probably swap between a few main characters (swapping at "chapter" conclusions... or should the worst happen to whoever the thread is in charge of). much like an RPG, I'd start with a general game plan in mind, but the specifics would play out based on the thread's suggestions/choices (and might wildly diverge if y'all turn out to be the "derailing" type)
Though frankly having to answer questions like this is somewhat making me doubt my ability. Which is a good thing. If I can't figure out how to do this, starting woudl be a bad idea.
No, that sounds good. It's basically just sort of impromptu writing, but obviously you'll have a little more time than that.
So yeah, if it's something you want to do, I'll certainly be happy to come along for the ride!