On other forums where I did freeform role-playing, games would usually start with a thread for Interest Checks/Recruitment, where people would brainstorm and throw ideas together for characters and storylines. Once it was clear that the game had legs, three threads would be made:
- a Character Registry, where everyone posts and lists their various characters for easy reference
- an Out-of-Character thread, where all the OOC discussion regarding the game took place
- an In-Character thread, where all the in-character role-play took place
Each game generally had it's own acronym as well, which was part of each thread's title to keep things easily recognizable at a glance. I think keeping that as general rule isn't a bad idea.
Any other suggestions? Questions? Thoughts?