Gab.ai Follow Bot (for Greasemonkey / Tampermonkey)

// ==UserScript==
// @name        Gab.ai Follow Bot
// @author    @Tumblrisms on twitter, @Fact on gab.ai
// @description Make sure Greasemonkey/Tampermonkey is ON and then load any /followers or /following page on gab.ai, for example https://gab.ai/fact/following. After a few seconds the script will follow everyone who isn't already followed and then load a random new /followers page to repeat the process. Leave it running in a tab while you do something else and pretty soon you will have 1000+ follows and a couple hundred followers.
// @namespace   gabai
// @include  https://gab.ai/*/followers*
// @include  https://gab.ai/*/following*
// @version  1.1
// @grant      none
// ==/UserScript==

var pctChanceUndo = 75; // 1 to 100 chance of reverting to a random earlier success page if we get stuck, rather than trying a following/follower page switch

var urlParams = new URLSearchParams(window.location.search);
var success1 = urlParams.get("success1");
var success2 = urlParams.get("success2");
var success3 = urlParams.get("success3");

function GoToRandomUser()
{
    // Find all usernames on the current page
    var nodes = document.evaluate("//a[@class='profile-badge__username']", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

    // Did we find any?
    if (nodes.snapshotLength > 0)
    {
        // More than 10 so keep a note of this page in case we get stuck on a private page in the future
        if (nodes.snapshotLength > 10)
        {
            success3 = success2;
            success2 = success1;
            success1 = window.location.pathname;
        }

        // Let's go to a random one next
        var url = "https://gab.ai/" + nodes.snapshotItem(Math.floor((Math.random() * nodes.snapshotLength) + 0)).text.slice(1) + "/followers";
    }
    else
    {
        if (Math.floor((Math.random() * 100) + 1) < pctChanceUndo)
        {
            var roll = Math.floor((Math.random() * 3) + 1);

            if (roll == 3 && success3 != null && success3 != "null")
            {
                url = "https://gab.ai" + success3;
            }
            else if (roll == 2 && success2 != null && success2 != "null")
            {
                url = "https://gab.ai" + success2;
            }
            else if (roll == 1 && success1 != null && success1 != "null")
            {
                url = "https://gab.ai" + success1;
            }
            else
            {
                // User started the script on a page with no available users, so use my page as a start instead
                url = "https://gab.ai/fact/followers";
            }
        }
        else
        {
            // No users found here, so we'll use their /following instead
            var splits = window.location.href.split("/");
            var url = "https://gab.ai/" + splits[3] + "/following";
        }
    }

    // Engage!
    window.location.href = url + "?success1=" + success1 + "&success2=" + success2 + "&success3=" + success3;
}

function FollowEveryoneOnThisPage()
{
    // Find all follow buttons on the current page
    var nodes = document.evaluate("//a[contains(text(),'Follow')]", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

    // Loop through and click all the found follow buttons that are visible
    for (var i = 0; i < nodes.snapshotLength; i++)
    {
        if (nodes.snapshotItem(i).text == "Follow" && nodes.snapshotItem(i).style.display != "none")
        {
            nodes.snapshotItem(i).click();
        }
    }

    // In two seconds all the follow requests will definitely have gone through and we can go to another user
    setTimeout(GoToRandomUser, 2000);
}

// Random 2 to 5 second delay to give the page time to load and tricky tricky @a ;-)))))
setTimeout(FollowEveryoneOnThisPage, Math.floor((Math.random() * 5000) + 2000));