gistfile1.js

// ==UserScript==
// @name       Global reddit No Participation
// @namespace  http://www.doctormckay.com/
// @version    1.0.0
// @description  Enforces No Participation on reddit globally, even if the subreddit doesn't support it
// @include    http://np.reddit.com/*
// @match      http://np.reddit.com/*
// ==/UserScript==

(function( ) {

    // include jQuery
    var headID = document.getElementsByTagName("head")[0];         
    var newScript = document.createElement('script');
    newScript.type = 'text/javascript';
    newScript.id = 'myjQuery';
    newScript.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js';
    headID.appendChild(newScript);
    
    window.addEventListener('load', function (e)  {
        if(window.location.pathname == '/') {
            window.location.href = 'https://pay.reddit.com';
            return;
        }
        
        jQuery('.arrow').css('visibility', 'hidden');
        jQuery('.report-button, a[onclick*="return reply(this)"]').parent().remove();
        jQuery('.usertext-edit, .sidebox.submit, .commentingAs, .markdownEditor, .subButtons, .helplink, .titlebox .fancy-toggle-button.toggle > .option.add').remove();
        document.title = "[NP] " + document.title;
    }, false);
})();