Cacher is the code snippet organizer for pro developers

// ==UserScript==
// @name         No Mypic
// @namespace    https://gist.github.com/tkrkt
// @version      0.1
// @include https://www.pixiv.net/member_illust.php*
// @grant        none
// ==/UserScript==

const style = document.createElement('style');

style.textContent = `
#mypixiv-button {display: none;}
.send-message {display:none;}
`;
document.head.appendChild(style);