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

[Richard Stallman]

      Note that the problem we
    are trying to fix with the above is not encountered very often and
    there are trivial _other_ ways to fix it, with a very minor change to
    a regexp.  It is not even clear that these trivial ways are really
    inferior.

They may be trivial to implement, but if you're talking about the
ones that we discussed, they get rid of a useful feature.