0: Get Tampermonkey for Chrome or GreaseMonkey for Firefox
1: Click Tampermonkey/Greasemonkey
2: Choose "Add Script"
3: Overwrite default with this
Code
// ==UserScript==
// @name Block Nekosama
// @description Block NekoSama's threads
// @match http://forums.d2jsp.org/forum.php?f=27
// ==/UserScript==
var userId = '434436';
var els = document.querySelectorAll('tr > td > a[href="user.php?i=' + userId + '"]');
for(var i=0,l=els.length; i<l; i++){
els[i].parentNode.parentNode.style.display = 'none';
}
4: Profit
for what it's worth, TABITHACAT's id is 1076980