This short snippet can be added to GreaseMonkey to supress the headline images that appear at the top of articles inThe Register site

Remove The Register headline article image

// ==UserScript==
// @name        Remove The Register article headline picture
// @namespace   www.theregister.co.uk
// @description Remove headline image from articles
// @include     http://www.theregister.co.uk/*
// @version     1
// @grant       none
// ==/UserScript==

var img = document.getElementsByClassName("article_img")[0];
img.style.width = "0px";
img.style.height = "0px";