While the draft system is useful sometimes, I find myself spending a lot of effort going into the saved drafts page to delete the unwanted autosaves, or posting new replies with unnoticed old drafts in front of what I actually meant to post. It would be a lot better if there were:
-an option in the user profile settings or on the saved drafts page to disable automatic draft saving, and/or...
-a button to delete the saved draft for a particular thread while viewing that thread, somewhere around the post reply/save draft/preview buttons
e: I should have done a search first, there was a request for these features back in 2011 but I guess tube said no back then. It's been long enough since then though that I thinks it's worth bringing up again.