On Thu, Nov 6, 2014 at 11:48 AM, Lennart Poettering  wrote:
From the systemd side we tried to clean this up, and give a good
recommendation on how this really should look like. We should probably
get the XDG basedir spec updated accordingly, but I figure there will
be some opposition to that, since it was too vague before and
everybody found his own interpretation.

Clarifying things in systemd documentation while sorta helpful isn't a real fix.  I am sure there might be some opposition to get a new revision of xdg base dir spec but you are the author of pulseaudio and systemd.  So...