Tampermonkey Script to Hide Your Username + Score

hide_karma.js

// ==UserScript==
// @name         HN Hide Karma Score
// @namespace    http://tampermonkey.net/
// @author       Shaun Pedicini
// @version      1.3
// @description  Hides your karma score (username and surrounding parentheses) on Hacker News. 
// @match        https://news.ycombinator.com/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

// Inject a style rule immediately so karma is hidden before first paint
const style = document.createElement('style');

style.textContent = '#karma, #me { display: none !important; }';

//style.textContent = '#karma { display: none !important; }';
document.documentElement.appendChild(style);

function removeKarma() {
    const karmaSpan = document.getElementById('karma');
    if (!karmaSpan) return;

    // removing user (optional
    const me = document.getElementById('me');
    if (me) me.remove();

    const parent = karmaSpan.parentNode;
    karmaSpan.remove();

    // The ( and ) live in separate text nodes flanking the now-removed span.
    // Walk the parent's text nodes and strip any stray parens.
    for (const node of Array.from(parent.childNodes)) {
        if (node.nodeType === Node.TEXT_NODE) {
            node.textContent = node.textContent.replace(/\s*\(\s*$/, '').replace(/^\s*\)\s*/, '');
        }
    }
}

document.addEventListener('DOMContentLoaded', function () {
    removeKarma();
    // Second pass after a short delay to catch late renders
    setTimeout(removeKarma, 500);
});

// Catch cases where DOMContentLoaded already fired
if (document.readyState !== 'loading') {
    removeKarma();
    setTimeout(removeKarma, 500);
}