I have a “suggestion” regarding this issue that I feel will help to not only make WordPress safer but also lessen possible frustration (like I experienced) by its many users. When removing (deleting) a User Name, there is a general warning message that says specific information of this user will be removed. However, this description of what will actually be deleted from this account (website) in no way truly explains just what files will be removed. I suggest a more detailed example be shown to alert people just what will be removed.
I hope you agree and will consider implementing this change,