Re: address@hidden: modeline doesn't divulge buffer will go bye bye]

[Richard Stallman]

    Maybem, if the variable is non nil, when Emacs exits it writes something
    along the lines of:
      ...
      Save buffers not associated with a file before exit? (y/n)

Simply asking a question like that, at exit time, could be a good
idea.  One more question at exit won't be terribly annoying, because
exiting is infrequent and often asks several questions.  The question
could say "Ask you now about saving buffers that have no files?".  I
think that is clear.

It could do this only if "hand-made" buffers exist, so that in many cases
you won't be asked the question at all.