Downvotes, Closes as Unclear, Adds VLQ flag, and posts to chat

LQ button userscript

// ==UserScript==
// @name         LQ button
// @author       bjb568
// @version      2.0.2
// @namespace    bjb568
// @description  Adds a LQ button
// @include      http://stackoverflow.com/questions/*
// @exclude     http://stackoverflow.com/questions/tagged/*
// ==/UserScript==
var parent = document.getElementsByClassName('post-menu')[0];
if (!parent) return;
var lsep = document.createElement('span');
lsep.classList.add('lsep');
lsep.appendChild(document.createTextNode('|'));
parent.appendChild(lsep);
var a = document.createElement('a');
a.appendChild(document.createTextNode('LQ'));
parent.appendChild(a);
a.onclick = function() {
	var n = location.href.match(/\/questions\/(\d+)/)[1];
	GM_xmlhttpRequest({
		method: 'POST',
		url: 'http://stackoverflow.com/flags/questions/' + n + '/close/add',
		headers: {'Content-Type': 'application/x-www-form-urlencoded'},
		data: 'fkey=' + unsafeWindow.fkey.value + '&closeReasonId=Unclear'
	});
	GM_xmlhttpRequest({
		method: 'POST',
		url: 'http://stackoverflow.com/posts/' + n + '/vote/3',
		headers: {'Content-Type': 'application/x-www-form-urlencoded'},
		data: 'fkey=' + unsafeWindow.fkey.value
	});
	GM_xmlhttpRequest({
		method: 'POST',
		url: 'http://stackoverflow.com/flags/posts/' + n + '/add/PostLowQuality',
		headers: {'Content-Type': 'application/x-www-form-urlencoded'},
		data: 'fkey=' + unsafeWindow.fkey.value
	});
	GM_xmlhttpRequest({
		method: 'GET',
		url: 'http://chat.meta.stackexchange.com/rooms/89/tavern-on-the-meta',
		onload: function(response) {
			GM_xmlhttpRequest({
				method: 'POST',
				url: 'http://chat.meta.stackexchange.com/chats/766/messages/new',
				headers: {'Content-Type': 'application/x-www-form-urlencoded'},
				data: 'text=Unclear%20http%3A%2F%2Fstackoverflow.com%2Fq%2F' + location.href.match(/\/questions\/(\d+)/)[1] + '&fkey=' + response.responseText.match(/hidden" value="([\dabcdef]{32})/)[1]
			});
		}
	});
};