Hide obvious wpDiscuz spam without breaking page behaviour
Per
// ==UserScript==
// @name LearnCpp Comment Antispam
// @namespace https://github.com/rawafh
// @version 1.2
// @author rawafh
// @license MIT
// @description Hide obvious wpDiscuz spam without breaking page behaviour
// @match https://www.learncpp.com/*
// @run-at document-end
// @grant none
// ==/UserScript==
(() => {
const MAX_BR = 80; // was too low; wpDiscuz uses many <br> for layout
const MAX_SHORT_LINES = 80; // raise threshold so normal long comments stay
const MAX_LENGTH = 8000; // only nuke absurd walls
const BAD_WORDS = [
/nigg/i, /retard/i, /antisemit/i, /hamas/i, /zion/i, /kill all/i, /israel/i, /zion/i
];
function isSpam(text, html) {
if (!text) return false;
// ignore normal spacing wpDiscuz uses
const brCount = (html.match(/<br/gi) || []).length;
if (brCount > MAX_BR) return true;
const shortLines = text.split(/\r?\n/).filter(l => l.trim().length <= 2).length;
if (shortLines > MAX_SHORT_LINES) return true;
if (text.length > MAX_LENGTH) return true;
if (BAD_WORDS.some(rx => rx.test(text))) return true;
return false;
}
function cleanComment(el) {
const body = el.querySelector('.wpd-comment-text');
if (!body) return;
const txt = body.innerText;
const html = body.innerHTML;
if (isSpam(txt, html)) {
body.textContent = '[Spam comment hidden]';
body.style.color = '#888';
}
}
function scan() {
document.querySelectorAll('.wpd-comment').forEach(cleanComment);
}
// run once after DOM settles
window.addEventListener('load', () => {
setTimeout(scan, 1500);
});
// observe only comment container to avoid global interference
const target = document.querySelector('.wpd-thread') || document.body;
const obs = new MutationObserver(() => scan());
obs.observe(target, { childList: true, subtree: true });
})();