JUser: :_load: Unable to load user...- Oops

Occasionally, I get ahead of myself - this is one of those times. Because of a security breach, I decided to delete the Super Administrator account and add a new one. Unfortunately, doing so disassociates any articles created by that user. This results in a warning on every page created by that user: JUser: :_load: Unable to load user with ID: xx, where xx is the user id number.

The result: I had to reassign a new author to every article. The recommendation: Simply downgrade the author to a much lower permission. Don't forget to change the password!