> It just occurred to me, while reading a note about this, that it is
> _not possible_ to make symlinks "unowned" and still preserve sticky
> directory semantics

What do you mean "_not possible_"?  This is software we're talking
about, not physics.  IMHO sticky directories should retain the UID of
the actual creator, not assume you can fudge one up from the file's
inode.

~Ken