gunosy_redirect.user.js

// ==UserScript==
// @name        gunosy redirect
// @namespace   gifnksm.hatenablog.jp
// @include     https://gunosy.com/articles/*
// @version     1.0.2
// @grant       none
// @downloadURL https://gist.github.com/gifnksm/cc0ae271dab4b31036d1/raw/gunosy_redirect.user.js
// @author      NAKASHIMA, Makoto <[email protected]>
// ==/UserScript==

let links = Array.filter(document.querySelectorAll(".article_main > .article_media a"),
                         elem => elem.textContent === "元記事を読む");

for (let link of links) {
  location.href = link.href;
}