The only thing I've ever found to have anything to do with that is...
Antisocial Sometimes you may not want a particuliar user or tag shown to you. You can enter usernames or tags here and they will no longer appear on your home or "for" page.
Yes, I tag all private bookmarks as 'for:megolas' and they show up on my main page if I'm logged in, but not if I don't. Also, if you try go to del.icio.us/for/username while not logged in, you get a error mesage that says 'You have to be logged in as [username] to view this page.'
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Antisocial
Sometimes you may not want a particuliar user or tag shown to you. You can enter usernames or tags here and they will no longer appear on your home or "for" page.
Which I guess just makes them private?
no subject