The General Roleplay board is from roleplays set on one thread only. You may have character signups in a separate thread. It is up to the person who posts the roleplay to provide character signups and other important things.
However, if you want a subboard for a roleplay set in say, the Harry Potter universe, or a made up place or something, contact an admin with a DETAILED description of your idea for it, and if its accepted, a subboard will be made for it. You will get admin privileges for it if we feel you won't abuse it.