When deleting a page that is being refered to from other pages you get a warning message with a list of those pages. After or before deletion you manually need to point these reference to a different page. It would be really helpful if there would be an option to point all these references to another page before deletion. Related problem: Pages in the Recycle Bin which are still referred to can result in a Login dialog for the visitor, which is a quite commom problem and the solution is not always obvious.