Probably should've mentioned you have to edit the code so it changes your name to something different.
// ==UserScript==
// @name Simple name changer
// @version 0.1
// @description yeah
// @author original: Steve5451 edit: L's & D's
// @match http://forum.blockland.us/*
// @grant none
// @noframes
// ==/UserScript==
var userUrl = "http://forum.blockland.us/index.php?action=profile;u=25867";
var newName = "Radio";
var links = document.getElementsByTagName("a");
for(i = 0; i < links.length; i++) {
if(links[i].href == userUrl) {
links[i].innerHTML = newName;
}
}
I've edited the code for you, assuming you want your changed to your IGN.