There is no intuitive way to say it is not reliable. Some people find it useful to learn, while others find it useless to learn, depending on personal understanding.

Short video is indeed a tuyere project now, after all, the traffic is large. If you want to make a short video, there are many classifications. It still depends on what category you choose. After determining the category, you can find some benchmark accounts to study and study, and you can imitate them first.