Script for viewing 9gag NSFW content without being logged in

9gag.js

function getURLFromID(id) {
  return 'https://img-9gag-fun.9cache.com/photo/' + id + '_700b.jpg';
}

function newImageEl(url, attrs) {
  const newEl = document.createElement('img');
  newEl.src = url;
  
  return newEl;
}

function unhideNaughtyPosts() {
  const postEls = document.querySelectorAll('article');

postEls.forEach(el => {
  const id = el.id.split('-')[2];
  const contentEl = el.querySelector('.nsfw-post');
  
  contentEl.innerHTML = '';
  contentEl.appendChild(newImageEl(getURLFromID(id)));
  contentEl.classList.toggle('nsfw-post');
});
}

document.querySelector('#container').addEventListener('DOMNodeInserted', e => {
  unhideNaughtyPosts()
});
unhideNaughtyPosts()

is this a userscript as well?