function bbp_current_author_ip() {

	// Check for remote address
	$remote_address = ! empty( $_SERVER['REMOTE_ADDR'] )
		? wp_unslash( $_SERVER['REMOTE_ADDR'] )
		: '127.0.0.1';

	// Remove any unsavory bits
	$retval = preg_replace( '/[^0-9a-fA-F:., ]/', '', $remote_address );

	// Filter & return
	return apply_filters( 'bbp_current_author_ip', $retval, $remote_address );
}