I typed for hours. I made one mistake, the whole post vanished, and just as I realised my mistake, AutoSave executed, and saved the empty post. All of that work gone, in an instant!or
I deleted the wrong post! How do I get back the post that I deleted?These folks are discovering the difference between deleting a blog (which can be recovered), and deleting / erasing a post (which cannot be recovered).
When you delete a blog, it's moved into a "Deletion in 90 days" status, and during the 90 days, you get the chance to change your mind, and restore the blog to operational status.
If you want to prevent AutoSave from saving an empty post at the wrong time, disable AutoSave.
Deleted posts are a different issue. From the "Edit Posts" menu, select one or more surplus posts, and hit "Delete Selected". You get one chance to change your mind.
"This action cannot be undone". That looks pretty final.
That's your one chance. Hit OK, and you're done. When you get past that point, your only solution is recovery / rebuilding - if possible. Blogger Support does not provide support, for recovery of deleted posts - sorry.