Am 23.01.2014 17:29 schrieb "Eli Zaretskii" <eliz@gnu.org>:
>
> > From: Sebastian Wiesner <lunaryorn@gmail.com>
> > Date: Thu, 23 Jan 2014 15:24:14 +0100
> > Cc: Tom Tromey <tromey@redhat.com>, Emacs-Devel devel <emacs-devel@gnu.org>
> >
> >
> > I cannot see how *not* calling "message_with_string" in "write_region"
> > could affect anything negatively.  Especially in a non-interactive
> > session, where "message_with_string" effectively comes down to
> > "fprintf".
>
> Imagine some situation where this output is caught and parsed, for
> example.
>
> In general, given behavior that is old enough, you can be sure that
> someone, somewhere relies on it.

I don't think it is my task to care for anyone, anywhere. 

If there is a concrete use case for these messages, fine, then we can try to find a good solution for either party involved, but we can't reasonably discuss about "virtual" use cases.