Disable new Profiles for Reddit

DisableNewProfiles.user.js

// ==UserScript==
// @name         Disable New Profiles
// @namespace    http://tampermonkey.net/
// @version      1.1.1
// @description  Modifies all profile links to bring you to the overview page by default. Also adds an "Overview" tab to the new Profile page and a "Profile" tab to the overview page.
// @author       /u/corylulu
// @match        https://www.reddit.com/*
// @grant        none
// @require      https://raw.githubusercontent.com/uzairfarooq/arrive/master/minified/arrive.min.js
// ==/UserScript==

(function() {
    'use strict';
    function modifyLink(a){
        if(a && a.href) {
            if (a.href.match(/\/u(?:ser)?\/[^\/?]+\/?$/) && a.className != "ignoreModifyLink")
                a.href = a.href + (a.href.endsWith("/") ? "overview" : "/overview");
        }
    }
    function addOverviewTab(tabMenu) {
        if(tabMenu) {
            var overview = document.createElement("a");
            overview.href = document.location.href.replace(/(.*\/u(?:ser)?\/[^\/?]+).*/, "$1") + "/overview";
            overview.className = "TabMenu__tab";
            overview.innerText = "Overview";
            tabMenu.append(overview);
        }
    }
    function addProfileTab() {
        var tabMenu = document.getElementsByClassName("tabmenu");
        if(tabMenu && tabMenu.length > 0) {
            var tabLI = document.createElement("li");
            var tabA = document.createElement("a");
            tabA.href = "./";
            tabA.className = "ignoreModifyLink";
            tabA.innerText = "profile";
            tabLI.append(tabA);
            tabMenu[0].insertBefore(tabLI, tabMenu[0].firstChild);
        }
    }

    // Adds Overview tab to new Profile pages (identified by lack of jQuery)
    if (!window.jQuery && document.location.href.match(/\/u(?:ser)?\/[^\/?]+\/?$/)) {
        var tabMenu = document.getElementsByClassName("TabMenu");
        if(tabMenu.length > 0) {
            addOverviewTab(tabMenu[0]);
        } else {
            document.arrive('.TabMenu', function(){ addOverviewTab(this); });
        }
    }
    // Add profile link to profile pages, only if they have an upgraded profile.
    else if(document.location.href.match(/\/u(?:ser)?\/.+\/(?:overview|submitted|gilded|upvoted|downvoted|hidden|saved)/) && r.config.post_site.startsWith("u_")) {
        addProfileTab();
    }

    // Modifies all existing links
    var links = document.getElementsByTagName("a");
    for(var i in links) {
        modifyLink(links[i]);
    }
    // Modifies links dynamically added to page
    document.arrive('a', function(){ modifyLink(this); });

})();