Why not gnat Ada in gcc?

[Richard Kenner]

    The argument really should be going the other direction.  What
    reason is so important that you *not* do development in the open?

Nobody is arguing against doing development in the open.  The issue is
the technical one of how to handle merges.  If there were to be a lot
of external developers the easiest way to do it is different than if
there weren't.  The point that Laurent Guerby originally made (and
which I support) is that it's wasteful to make that decision until we
see whether there actually *are* such developers, especially when
there's significant evidence (the past six years) that there aren't.