A user who edits through an account they have registered, may immediately create pages in any namespace (except the MediaWiki namespace, and limited to 8 per minute) and may also e-mail other users if they activate an email address in their user preferences. All logged-in users may mark edits as minor. They may purge pages without a confirmation step, but are still required to answer a CAPTCHA when adding external links. They may also customize their Wikimedia interface and its options as they wish, via Special:Preferences or by adding personal CSS or JavaScript rules to their vector.css or vector.js files.