like-everything.js

var queued = [], scrollTimeout, waitForQueueTimeout;

function queueMore() {
	Array.prototype.filter.call(document.querySelectorAll('a.UFILikeLink[title*="Like this"]'), function(a) {
		if (queued.indexOf(a) === -1) {
			queued.push(a);
		}
	});
}

function getRandomInt (min, max) {
	return Math.floor(Math.random() * (max - min + 1)) + min;
}

function likeNextComment() {
	window.setTimeout(function() {
		console.log('likeNextComment');
		var a;

		// if there are 'like' buttons queued, grab the first off the stack and like it
		if (queued.length !== 0) {
			do
			{
				a = queued.shift();
			// Just incase an item was added to the stack again before we were able to like it, grab the next one
			} while (a.title === 'Unlike this comment' || a.title === 'Unlike this');

			a.click();
		}

		likeNextComment();
	}, getRandomInt(1500, 6000));
}

function waitForQueueToclear() {
	console.log('waitForQueueToClear');
	waitForQueueTimeout = window.setInterval(function() {
		if (queued.length === 0) {
			window.clearInterval(waitForQueueTimeout);
			startScrollyolyol();
		}
	}, 500);
}

function scrollyolyol() {
	console.log('scrollyolyol');
	if (queued.length > 50) {
		window.clearInterval(scrollTimeout);
		waitForQueueToclear();
	}

	window.scrollTo(0, document.body.clientHeight);
	queueMore();
}

function startScrollyolyol() {
	// scroll the window every 100ms to get more things to like
	scrollTimeout = window.setInterval(scrollyolyol, 100);
}

// call this to get rolling.
// startScrollyolyol(); likeNextComment();