Question: Document properties - no one fills it in - Are you guilty? and What use are they?

Curiously I find myself guilty of never filling out the document properties fields. Author, Keywords, Subject and Title. I have also noticed that no one else, or at least a majority of maple users don't bother with this although I haven't found anyone who actually does fill these fields out, just browse the applications in the application center. What other usefullness do these attribute field placeholders have? Seeing that no one makes use of them, it doesn't seem that they are more useful than just a name placeholder and a waste of time. Except maybe that those fields can also be read by an external editing program as mentioned in the help file. Is there more to these document properties I overlook? Are you guilty?
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