disdamn wrote:There's a sticky at the top of this forum with guidelines for posting short stories
That only covers creating articles, not posting threads in DF.
Personally, I have the first chapter or section in the opening post--I don't tend to make a thread until I've written something worth posting--and simply add subsequent chapters in their own posts as and when, surrounded by Quote tags to make the actual story bit stand out from regular posts.
Others might prefer to 'reserve' a number of posts after their opening post for adding content to, by making posts just saying "Reserved for further chapters" or something similar. Some may just posts chunks of prose as regular posts whenever they feel like it.
Really, there's no set standard for doing it. Try out a few methods and see what works best for you and your readers.