Mart, this is a valid point, I've been wondering if someone would first ask me the purpose of my initial request...

A good use of this would be, for example, this Office 2000 problem:
Full-file version update may request Office source files
http://support.microsoft.com/kb/840169/

Another usage is for doing a mass modification of many user's documents. When doing so, suddendly the user would believe her files were all messed up, and would certainly confuse the result of a file search.