Pinterest login wall blocker userscript. Install link (requires Grease/Tamper/Violentmonkey browser extension): https://gist.githubusercontent.com/plu5/fd7f2d261b44539402d539cd044e8d4a/raw/pintwb.user.js

pintwb.user.js

// ==UserScript==
// @name            Browse your interests without registration
// @name:it         Naviga i tuoi interessi senza registrazione
// @author          Andrea Lazzarotto, plu5
// @homepageURL     https://gist.github.com/plu5/fd7f2d261b44539402d539cd044e8d4a
// @updateURL       https://gist.githubusercontent.com/plu5/fd7f2d261b44539402d539cd044e8d4a/raw/pintwb.user.js
// @downloadURL     https://gist.githubusercontent.com/plu5/fd7f2d261b44539402d539cd044e8d4a/raw/pintwb.user.js
// @namespace       http://andrealazzarotto.com/
// @description     Find more ideas on the web without login/registration
// @description:it  Trova altre idee sul web senza accedere o registrarti
// @version         2.5.0
// @include         https://www.pinterest.tld/*
// @copyright       2014+, Andrea Lazzarotto
// @require         https://cdnjs.cloudflare.com/ajax/libs/cash/8.1.0/cash.min.js
// @require         https://greasyfork.org/scripts/35383-gm-addstyle-polyfill/code/GMaddStyle%20Polyfill.js?version=231590
// @license         GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
// @grant           GM_addStyle
// @match        https://*.pinterest.com/*
// @match        https://*.pinterest.at/*
// @match        https://*.pinterest.ca/*
// @match        https://*.pinterest.ch/*
// @match        https://*.pinterest.cl/*
// @match        https://*.pinterest.co.kr/*
// @match        https://*.pinterest.co.uk/*
// @match        https://*.pinterest.com.au/*
// @match        https://*.pinterest.com.mx/*
// @match        https://*.pinterest.de/*
// @match        https://*.pinterest.dk/*
// @match        https://*.pinterest.es/*
// @match        https://*.pinterest.fr/*
// @match        https://*.pinterest.ie/*
// @match        https://*.pinterest.info/*
// @match        https://*.pinterest.it/*
// @match        https://*.pinterest.jp/*
// @match        https://*.pinterest.nz/*
// @match        https://*.pinterest.ph/*
// @match        https://*.pinterest.pt/*
// @match        https://*.pinterest.se/*
// ==/UserScript==

// with a few additions by plu5 to make it match all domains
// and to remove also the little box in the corner

/* Greasemonkey 4 wrapper */
if (typeof GM !== "undefined" && !!GM.addStyle)
    GM_addStyle = GM.addStyle;

$(document).ready(function () {
    // We need to start from a page with a search bar
    if (location.pathname == "/")
        location.href = "https://" + location.host + "/search/pins/?q=pin&rs=typed";

    GM_addStyle(`
        div[data-test-id=bottom-right-upsell], div#credential_picker_container, .UnauthBanner, body>.Modal, .ModalManager>.Modal, .Closeup__wrapper>div[style*='fixed'], iframe[src*=smartlock], div[data-test-id=signup] {
            display: none !important;
        }

        .noScroll {
            overflow: auto !important;
        }

        div[style*='cubic-bezier'], div[style*='fixed']>div[style*='opacity: 0.5'], div[style*='background-color: rgba(0, 0, 0, 0.6);'], .FullPageModal__scroller {
            display: none !important;
        }

        div.gridContainer>div, .Grid {
            height: auto !important;
        }

        :root body { overflow-y: auto !important; }
    `);
});