v2ex_new_reply.user.js

// ==UserScript==
// @name        v2NewReply
// @namespace   http://bazqux.com?me=fdsfwf
// @include     http://*.v2ex.com/my/topics*
// @include     http://v2ex.com/my/topics*
// @version     1
// @grant       none
// ==/UserScript==

function xpath(query){
  return document.evaluate(query, document, null,
                          XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
}

var titles = xpath(" //span[@class='item_title'] ");
var yahoopipes = "http://pipes.yahoo.com/pipes/pipe.run?_id=37820060cc28fe2692d3aa0056aba4c2&_render=rss&topic=";
var bazqux = "https://bazqux.com/add?url=";
var title;
for (var i=0; i<titles.snapshotLength; i++){
  title = titles.snapshotItem(i);
  var feeds = document.createElement("span");
  var topic_link = "http://v2ex.com" + title.firstChild.attributes.href.value;
  feeds.innerHTML = '<br /> <a target="_blank" href=" '  + yahoopipes + topic_link + ' ">Feed |</a> <a target="_blank" href=" ' + bazqux + encodeURIComponent(yahoopipes + topic_link) +'"> Bazqux </a>';
  title.appendChild(feeds);
}