Proof of Concept UserJS script to add nicknames to Google+

GPlusNicks.user.js

// ==UserScript==
// @name                G+ Nicks
// @namespace	        https://plus.google.com/
// @description	        Proof of concept script to add nicknames to usernames on G+
// @include		https://plus.google.com/*
// ==/UserScript==
	
anchors = document.getElementsByClassName('yn');

function add_nickname(oid, username) {
  switch(oid) {
    case '112064652966583500522':
      nick = 'FiXato';
      break;
    //Add cases here for each oid / nick combination. The oid is the unique user id for each profile on G+
    default:
      nick = oid;
  }
  nick = ' (' + nick + ')';
  username += nick;
  return username
}

for (var i = anchors.length - 1; i >= 0; i--) {
  var user = anchors[i];
  new_username = add_nickname(user.attributes['oid'].value, user.innerText);
  user.innerText = new_username;
}