The "drafts" feature is for drafts of posts you are composing, and thats it. Its primary purpose is to prevent users from loosing what they have been writing if they have a poor internet connection, or if someone needs to spend a long time researching and composing a post.

The drafts feature is not designed to serve as a way to write yourself notes, nor to provide you a template for your posts/threads. If you will be making many OPs or posts that need to follow a similar template, you can create the template, send a PM to yourself and use the "label" feature to allow you to quickly locate the PM.