Re: display-buffer-other-frame - useful? doc string?

[Richard Stallman]

    It indeed looks very odd and the code has no comment to explain/justify
    the funny dance it does.  My guess is that the call to `lower-frame' is
    to make sure the new frame doesn't hide the current one.

If you take that out, does the frame get raised instead?
If so, that would be the explanation.  But the right thing isn't to lower
the frame, it is to avoid raising it.