1) There is a link in 7.1.2 to
http://xmpp.org/extensions/xep-0060.html#impl-errors which should be to
http://xmpp.org/extensions/xep-0060.html#impl-bounce
2) The link in 8.7.4 to
http://xmpp.org/extensions/xep-0060.html#impl-unsub doesn't lead
anywhere (and the section (by that name at least) seems to be non-existent).
3) Example 209 has a header of
<header name='pubsub#subid'>
whereas the other <header name>'s merely have "SubID" as the attribute value
4) I think it might be helpful to clarify that the XSLT stylesheet
indicated by #body_xslt should be transformed by the server (I know it
should be clear since body would presumably only be used by clients not
supporting the payload format).
Brett