Tampermonkey/Greasemonkey script which adds the ability to reject domains generated on the bustaname domain generator.

Bustaname_reject_button.js

// ==UserScript==
// @name         Bustaname Reject Button
// @namespace    https://gist.github.com/trex005/
// @version      0.0.1
// @description  Tampermonkey/Greasemonkey script which adds the ability to reject domains generated on the bustaname domain generator.
// @author       trex005
// @match        http://www.bustaname.com/*
// @grant        GM_addStyle
// @require      https://code.jquery.com/jquery-3.3.1.min.js
// ==/UserScript==

(function() {
    'use strict';
    jQuery.noConflict();
    let reject_checkbox = jQuery("<input type='checkbox' id='reject_checkbox'>");
    function handleCheckbox(){
        if(reject_checkbox.is(':checked')){
            localStorage.setItem('reject_checkbox','checked');
            jQuery("#availableResultList").addClass('hideRejected');
        } else {
            localStorage.removeItem('reject_checkbox');
            jQuery("#availableResultList").removeClass('hideRejected');
        }
    }
    GM_addStyle(
        '#hide_rejected{clear:both}'+
        '#availableResultList.hideRejected .rejected{display:none!important}'+
        '.reject_button, .unreject_button{float:right}'+
        '.rejected{background-color:pink!important}'+
        '.rejected .reject_button{display:none}'+
        '#availableResultList .unreject_button{display:none}'+
        '#availableResultList .rejected .unreject_button{display:block};'
     );
    reject_checkbox.on('click',handleCheckbox);
    if(localStorage.getItem('reject_checkbox')==='checked')
           reject_checkbox.prop('checked','true');
    jQuery('#resultsContainer br').first().after(reject_checkbox);
    reject_checkbox.after("<label for='reject_checkbox'>Hide rejected</label>");
    handleCheckbox();
    function addButtons(){
        let words = document.querySelectorAll('#availableResultList .wordDiv');
        words.forEach((w)=>{
            let word = jQuery(w);
            let div = word.find('div');
            if(localStorage.getItem(div.text()) === 'true')
                word.addClass('rejected');
            if(jQuery(word).hasClass('added_reject'))return;
            word.addClass('added_reject');
            let reject_button = jQuery("<button class='reject_button'>X</button>");
            let unreject_button = jQuery("<button class='unreject_button'>+</button>");
            reject_button.on('click',()=>{
                word.addClass('rejected');
                localStorage.setItem(div.text(),'true');
            });
            unreject_button.on('click',()=>{
                localStorage.removeItem(div.text());
                word.removeClass('rejected');
            });
            div.before(unreject_button);
            div.before(reject_button);
        });
    }
    setInterval(addButtons,1000);
    // Your code here...
})();