@pratik Yes, import and export are possible, but Drafts does not work natively with files. So, for example, you can't access drafts via Finder or the terminal. At least not without manually exporting them first (and then importing them again if changes were made). That's way too much trouble for me.
But, again, I'm weird in that way. I'm very unixy if that makes sense. My content must reside in plaintext files because my workflow, tools, and scripts revolve around and operate on files.