Not my style. Writing for me is not such a 'cold' process. I need to feel the temp and the atmosphere I use word processors for writing articles not forum posts, it just doesn't work for me. Additionally I use a lot of formatting features, I mean a LOT.
As of what is naive I think implementing a feature in the most trivial and lazy way is naive. Once you are ready to allocate 100 post space for drafting you need to define and implement it better than what is done here:
"Push either preview or post buttons and I'll push some garbage on the pile of other garbages for you and it is called drafting in my dictionary"
Lame!
I understand your frustration, and sure it could be easy to implement something like this. However, throughout life you should never rely on a third party. Take a leaf out of Bitcoin's book! You can still write it here on the forum, but just make your own backups periodically. Maybe, with long posts change up your style, and format after to make it easier. It's much easier than losing all of that work, and having to redo it all.