Deleting your Facebook is difficult? I believe mine is hard deleted (not deactivated), and it was the same workflow as deactivating it, if I remember correctly. I just clicked "delete" instead of "deactivate" or whatever.
Facebook leaves the account deactivated for a week so you can ponder on your choice, but if you don't do anything, it was my understanding that the account gets deleted.
I believe doing the delete account via Facebook will only delete [your own] posts and things on "your timeline/wall". Any comments you made on other peoples posts do not get deleted. I believe, using the "automation" method or similar methods actually goes through and finds all your posts and comments on other people's walls/timelines and also deletes them.
Nothing gets deleted ever, your account and related data still lives in facebook servers but only accessible to facebook and their commercial partners (also NSA, US government, spy agencies and crackers).
You can't delete the data you gave to facebook, you can make it disappear to the other facebook registered slaves but it will live forever in facebook storage.
Facebook leaves the account deactivated for a week so you can ponder on your choice, but if you don't do anything, it was my understanding that the account gets deleted.