Removing jQuery dependency and updating to work with Scriptish.

KohanaForumHideRussian.user.js

// ==UserScript==
// @id             forum.kohanaframework.org-d0515b72-1b32-4b30-a2e6-ab4f0f3fbb13@evopix
// @name           KohanaForumHideRussian
// @version        2.0
// @namespace      evopix
// @author         Brandon Summers
// @description    Hide Russian threads from Kohana forum.
// @include        *forum.kohanaframework.*
// @run-at         document-end
// ==/UserScript==

function main() {
	var items = document.querySelectorAll('ul.DataList li.Item');
	for (var i = 0, len = items.length; i < len; i++) {
		var elem = items[i],
			category = elem.querySelectorAll('div.Meta a.Category')[0].innerHTML;
		
		if (category == 'Русскоязычное сообщество') {
			elem.style.display = 'none';
		}
	}
}

main();