function bbp_setup_option_filters() {

	// Add filters to each bbPress option
	foreach ( array_keys( bbp_get_default_options() ) as $key ) {
		add_filter( 'pre_option_'     . $key, 'bbp_filter_pre_get_option', 10, 2 );
		add_filter( 'default_option_' . $key, 'bbp_filter_default_option', 10, 3 );
	}

	// Allow previously activated plugins to append their own options.
	do_action( 'bbp_setup_option_filters' );
}