Yes, I can't really see the point (sorry)!
(Not that I would object if others like the idea, though!)
I mostly doubt the use of a whole number of threads, though.
The more threads, the more the party will spread out - i.e. each thread will be the slower for there being other threads.
Normally, I think, the party finally happens in one place anyway.
Yes, it would be a fast moving thread, but I think a single fast moving thread draws more people than several that move more normally - it just doesn't seem so exciting when the speed isn't breathtaking.
I also think that the thread wouldn't have to go up days in advance - all the decorations are in print, and can be written at leisure offline, so as soon as Mossy or Pip hit "submit" it's all there.
I think the Turf would be fine for that. We'd probably move the threads there after the party anyway, if we had a forum.
(I was wondering whether you were thinking about putting them in History, though.
)
The only advantage I see for a forum is that it could truly open, and thus re-enact the opening of the board. (Although I'm not sure if that wouldn't be a bit "twee")
But, as I said, my main doubt lies in the fact that I don't think the party should take place in different threads.
Maybe you could explain a bit more what you were thinking should be going on in these different threads?
I'm ready to be convinced!