Panie Stradivarius mam dwie wiadomości. Napisaliśmy to z chatemgpt

nie działa 

czemu?

// ==UserScript==
// @name       Hide posts and topics from user on kafeteria.pl
// @description  Hides posts and topics from a specified user on kafeteria.pl forum.
// @version     0.1
// @grant       GM_addStyle
// @match       https://*.kafeteria.pl/*
// ==/UserScript==

(function() {
  // Get the user ID of the user whose posts and topics you want to hide.
  var userId = "antyleżak";

  // Function to hide posts and topics.
  function hidePostsAndTopics() {
    var posts = document.querySelectorAll('.cPost[data-author="' + userId + '"]');
    var topics = document.querySelectorAll('.ipsDataItem[data-author="' + userId + '"]');

    // Hide posts by the user.
    for (var i = 0; i < posts.length; i++) {
      posts[i].style.display = "none";
    }

    // Hide topics started by the user.
    for (var j = 0; j < topics.length; j++) {
      topics[j].style.display = "none";
    }
  }

  // Check if the page has finished loading and run the hide function.
  if (document.readyState === "complete") {
    hidePostsAndTopics();
  } else {
    window.addEventListener("load", hidePostsAndTopics);
  }

  // Add custom styles to hide the elements visually.
  GM_addStyle(`
    .cPost[data-author="${userId}"], .ipsDataItem[data-author="${userId}"] {
      display: none !important;
    }
  `);
})();