Help me leave BLF 1.0

// ==UserScript==
// @name         Help me leave BLF
// @version      1.0
// @description  Remove posting capability without logging out
// @author       Steve5451
// @match        https://forum.blockland.us/*
// @namespace    http://thepotato.tk/
// @updateURL    https://pastebin.com/raw/cRse87Ey
// @downloadURL  https://pastebin.com/raw/cRse87Ey
// @grant        none
// ==/UserScript==

var url = window.location.href;

if(url.includes("topic=")) {
    var quickReply = document.getElementById("quickReplyExpand"),
        replyButton = document.querySelectorAll("img[src*='reply.gif']");

    if(quickReply)
        quickReply.parentNode.parentNode.parentNode.parentNode.parentNode.style.display = "none";

    if(replyButton) {
        for(var i = 0, n = replyButton.length; i < n; ++i) {
            replyButton[i].style.display = "none";
        }
    }
} else if(url.includes("action=post")) {
    var textbox = document.getElementsByClassName("editor")[0];
    if(!textbox) return;

    textbox.parentNode.parentNode.parentNode.style.display = "none";
} else if(url.includes("board=")) {
    var topicButtons = document.querySelectorAll("img[src*='new_']");

    for(var i = 0, n = topicButtons.length; i < n; ++i) {
        topicButtons[i].style.display = "none";
    }
}