redditremove.user.js

// ==UserScript==
// @name        Reddit - redditremove://* button
// @include     *://reddit.com/*
// @include     *://*.reddit.com/*
// @version		1.0
// @run-at document-start
// ==/UserScript==

function addRemovalButtons() {
	reason = 'just_because';
	
	//Add the button to the end of each post listing
	$('body.moderator div.thing').each(function(){
		thing_id = $(this).attr('data-fullname');
		
		entry = $(this).children('div.entry').first();
		subreddit = $(entry).attr('subreddit');
		
		$(entry).find('ul.flat-list.buttons').append('<li> \
				<a href="redditremove://'+subreddit+'/'+thing_id+'/'+reason+'">remove with reason</a> \
			</li>');
	});
}

//Add the script to the page
document.addEventListener('DOMContentLoaded', function(e) {
	var s = document.createElement('script');
	s.textContent="("+addRemovalButtons.toString()+')();';
	document.head.appendChild(s);
});