Reddit Promotion Blocker

Blocks all of the promoted advertisements on Reddit.
Ask a question, post a review, or report the script.
Wrap lines
// ==UserScript==
// @name         Reddit Promotion Blocker
// @namespace    http://tampermonkey.net/
// @version      0.6.0
// @description  Blocks all of the promoted advertisements on Reddit.
// @author       Aiden Charles
// @match        http://reddit.com/*
// @match        https://reddit.com/*
// @match        http://www.reddit.com/*
// @match        https://www.reddit.com/*
// @match        http://old.reddit.com/*
// @match        https://old.reddit.com/*
// @grant        none
// ==/UserScript==

(function () {
    console.log("Reddit promotion blocker script is running!");

    function hide(selector, parentLevels = 0, text = "") {
        document.querySelectorAll(selector).forEach(element => {
            if (text === "" || element.textContent.includes(text)) {
                let target = element;
                for (let i = 0; i < parentLevels; i++) {
                    if (target.parentElement) {
                        target = target.parentElement;
                    } else {
                        return;
                    }
                }
                target.style.display = 'none';
            }
        });
    }

    const elementsToHide = {
        oldReddit: [
            ["span", 5, "promoted"],
            ["div .ad-container", 1],
            ["span .promoted-tag", 2]
        ],
        newReddit: [
            ["shreddit-ad-post"],
            ["shreddit-comments-page-ad"],
            ["shreddit-comment-tree-ad"],
            ["shreddit-async-loader[bundlename='sidebar_ad']"],
            ["shreddit-async-loader[bundlename='feed_announcement']"],
            ["div[data-before-content='advertisement']", 3],
            ["div .adsense-ad", 2],
            ["span .promoted-tag", 2],
            ["div .promotedlink"]
        ]
    };

    const observer = new MutationObserver(function () {
        const isOldReddit = window.location.hostname === "old.reddit.com";
        const targets = isOldReddit ? elementsToHide.oldReddit : elementsToHide.newReddit;
        targets.forEach(args => hide(...args));
    });

    observer.observe(document, {childList: true, subtree: true});
})();