Disallow certain nicknames :)

Even though WP is meant for blogging, some of us here use it for “heavy group blogs” where we might not want to trust everyone of our users.

Such a case occurred today. One of my users duplicated my nickname ;/

I have searched and could not find any plugins to do that. Looks like a hard code deal to me. But my Php skills are low.

So, can I add something here to make this work ?

function update_nickname ( ) {

		var nickname = jQuery('#nickname').val();
		var display_nickname = jQuery('#display_nickname').val();

		if ( nickname == '' ) {
			jQuery('#display_nickname').remove();
		}
		jQuery('#display_nickname').val(nickname).html(nickname);

	}

Or perhaps something else ? Anybody got 5 minutes to cook something up 😀 ?