XSPF output hurts privacy
The playlist location element should not carry file URI information because that can hurt the user's privacy. For instance a URI like
!file:///home/bob/porn/sountrack/ginawild34.xspf
might not be what Bob wants others to see. So please either (A) do not write the playlist's location into the file or (B) make it optional and off by default.
For more details please see <playlist.location> and privacy / XSPF v1 Notes and Errata. Thanks for listening.