没有重写 notify 这样做行吗？

App\Observers\ReplyObserver

    public function created(Reply $reply)
    {
        $reply->topic->reply_count = $reply->topic->replies->count();
        $reply->topic->save();

        if (Auth::id() != $reply->topic->user_id) {
            $reply->topic->user->notify(new TopicReplied($reply));
            $reply->topic->user->increment('notification_count');
        }
    }

这样行不行。不想改notify了。合不合适