stahp with username changes

stahpwithusernamechanges.user.js

// ==UserScript==
// @name         stahp with username changes
// @namespace    eoisdhfqlkjasdf
// @version      1.0
// @description  self explanatory 
// @author       You
// @match        *://*.stackexchange.com/*
// @grant        none
// ==/UserScript==

[
  ["Helka Homba", "Calvin's Hobbies"],
  ["HelkaHomba", "CalvinsHobbies"],
  ["Helka", "Calvin"],
  ["fItaJ.png", "qkXJy.png"],
  ["Aqua Tart", "quartata"],
  ["Don Musolini", "Luis Mendo"],
  ["DonMusolini", "LuisMendo"]
  ["AandN", "Adnan"],
  ["A and N", "Adnan"],
  ["lirtosiast", "Thomas Kwa"],
  ["I Go Best", "Geobits"],
  ["IGoBest", "Geobits"],
  ["Downgoat", "Vihan"],

  ["Code Review", "the evil code reviewers"]
].forEach(function(name) {
  try {
    document.body.innerHTML = document.body.innerHTML.replace(RegExp(name[0], 'gi'), name[1]);
  } catch(e) { }
});

Why does this exist? Also, you're missing ["Downgoat", "Vihan"].

Why does what exist?

Also, it's not Don Musolini. It's Don Muesli.