Automatic deletion of new 'untitled' notes occurs in both Outline and Map views. Closing title edit (e.g. clicking outside the $Name edit box) that has not been named , results in that note being deleted. This copes with the easy mistake of hitting Return by mistake and unintentionally creating a new note.
Note, however, that automatic deletion is deferred briefly after focus leaves title edit, allowing the user to click onto the text pane and begin typing without choosing a note name (or editing Displayed Attributes). If the note is given $Text or customised in any way, the automatic deletion is suppressed, so container OnAdd actions may suppress this feature inside the container.
In map view, dragging a link to the background creates a new note and completes the link. In this case, the untitled note is no longer automatically deleted.