WordPress at a glance
filter is not described

xmlrpc_allow_anonymous_comments filter-hook . WP 2.7.0

Filters whether to allow anonymous comments over XML-RPC.

Usage

add_filter( 'xmlrpc_allow_anonymous_comments', 'filter_function_name_9695' );
function filter_function_name_9695( $allow ){
	// filter...

	return $allow;
}
$allow(true/false)
Whether to allow anonymous commenting via XML-RPC.
Default: false

Where the hook is called

wp_xmlrpc_server::wp_newComment()
wp-includes/class-wp-xmlrpc-server.php 3611
$allow_anon = apply_filters( 'xmlrpc_allow_anonymous_comments', false );

Where the hook is used (in WP core)

Does not used.