bp_get_the_thread_id()

	function bp_get_the_thread_id() {
		global $thread_template;

		/**
		 * Filters the ID of the thread that the current loop belongs to.
		 *
		 * @since BuddyPress 1.1.0
		 *
		 * @param int $thread_id ID of the thread.
		 */
		return apply_filters( 'bp_get_the_thread_id', $thread_template->thread->thread_id );
	}