Why not just make one now to save yourself the trouble, keep yourself from losing your reviews (and making a fanfiction thread that looks like no one's read it), and avoid having to link to over 9000 (exaggeration, but the point still stands) other threads to get people from one part to another? (We would, after all, have to have multiple windows or tabs open if we want to go back and forth to read parts of your story and remind ourselves what happened.) It's easier to archive your entire story in one thread, it's cleaner for the forum, and it's just courtesy and the usual accepted format for a fanfiction forum. It's a lot like an unwritten rule that you keep your chapters in one place, partly out of courtesy to the reader (and to the other authors in the forum) and partly because it's pretty much all the same topic anyway, if that makes sense.