Re: ! in Dired--what was the outcome?

[Richard Stallman]

    Maybe I should mention a possible simpler solution, proposed in
    private email by Johan Vromans to use {} instead of ?, in analogy with
    the -exec argument of find(1).

    mv {} .{}.uu

That could be a good idea.  It would only cause a problem if you
are trying to run `find'.  I guess you could use "{}" to pass
that argument to `find'; by the time `find' sees it, the quotes
will have been removed.

Does anyone see a problem with this?

    I do not know whether we then also should use () or [] or such
    instead of * for consistency.

That would be rather complex, and there is no problem with *.
Using * is natural because it means "all the files".