Subforum for Adventure-Specific Discussion Threads

Maybe we could do a trial run for a month and if there isn't a certain amount of content we just merge all the threads into a discussion mega thread.

In my experience, this is a pretty good way of handling things, though I would go longer than a month. In the beginning there will be lots of use, but sometime down the road, there's (theoretically) just going to be a subforum where nobody has posted in the last month - and that's a key sign that the plan doesn't really need to be in place.

But again, you can make the argument that having infrastructure in place for this sort of thing is better than not having it at all.