Re: Several serious problems

[Richard Stallman]

    > If the specified coding system is totally inappropriate for
    > the buffer, highlighting them will results in huge amount of
    > overlays and also it takes long time to finish the job.  If

    That was also my concern, but I heard that Emacs-20 did just that.

If empirically it works well enough, there's no reason to object.
Did anyone ever try this in Emacs 20 on a substantial file
with many unsuitable characters?  If not, would you like to try that
now and see how bad it was?