you counter

// ==UserScript==
// @name        You Count
// @namespace   ben
// @include     https://boards.4chan.org/*
// @include     http://boards.4chan.org/*
// @version     1
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_addStyle
// @require http://code.jquery.com/jquery-1.9.1.js
// @require http://code.jquery.com/ui/1.10.3/jquery-ui.js
// author: ben
// ==/UserScript==
/*jshint multistr: true */

adder = null;
remover = null;
allTimeYou = GM_getValue("totalYou",null);

function count(){
  num = $('.you').length;
  console.log('counting');
  console.log(num);
  return num
}
function write(input){
if (adder != null){
  if (adder != 0){
    storage();
  }
}
}

function difference(){
  var here = count();
  if (adder != null){
   remover = (here - adder)
   adder = (here - adder) + adder;
   console.log('new value ' + adder);
  }
  else{
    adder = here
    console.log('starting adder');
  }
   
  }

function render(){
  difference();
  write(adder);
  document.getElementById("gmYouCounter").innerHTML="(You) Count: " + allTimeYou;

 
}
function storage(){
  var store = GM_getValue("youHashTable",null);
  if (store == null){
    store = {};
    store[window.location.href] = adder
    }
  else{
    if (store[window.location.href] != 0){
    store[window.location.href] = store[window.location.href] + remover}
    else{
     store[window.location.href] = adder
    }
  }
  GM_setValue('youHashTable',store);
  console.log(store)
  var total = 0
  for (var property in store){
    total += store[property];
  }
  allTimeYou = total
  GM_setValue('totalYou',allTimeYou);
  document.getElementById("gmYouCounter").innerHTML="(You) Count: " + allTimeYou;

}

var newHTML         = document.createElement ('div');
newHTML.innerHTML   = '                 \
    <div id="gmYouCounter">             \
        <p>"Total You Count:" </p>      \
    </div>                              \
';

document.body.appendChild (newHTML);
document.getElementById("gmYouCounter").innerHTML="(You) Count: " + allTimeYou;
 
GM_addStyle ( "                         \
    #gmYouCounter {                     \
        position:       fixed;          \
        background-color: #1b1b1b;        \
        color: #cccaca;                     \
        top:            5px;            \
        right:           5px;            \
        font-size: 16px; \
    }                                   \
" );
  

$(document).load(setInterval(render,15000));