Is it necessary to copyright registration your intellectual property?

For those who hold the theory that copyright registration is useless, I can definitely judge that he must have never experienced copyright disputes. The views held on this subject were very popular and common about ten to fifteen years ago. At that time, enterprises and individuals generally believed that trademark rights and patent rights were useless, and application was a waste of money. At that time, most people did not know what copyright was. The reason, as the subject said, is that piracy is everywhere and infringement is out of the question. But if you don't want to say goodbye to others, you won't bother to get rich. But your idea does not represent everyone's idea, that is, someone uses intellectual property protection to attack your enterprise. The solution is simple: Don't you think it's useless to be copyright registration? All right, I'll make copyright registration with your work. Then take the copyright registration certificate to sue you for plagiarism and ask you to compensate for the loss. Of course, the court will accept it, but you need a long time to collect evidence to prove your innocence, and there is also a problem whether the court finds your evidence valid. And this is just a superficial malice. What's more sinister is that you send infringement warning letters to all known customers, which will damage your reputation in the industry and make customers suspicious. If the media are invited to intervene in the exposure again, well-run enterprises will be in jeopardy immediately, or even close down directly. Is copyright registration expensive? No, the registration fees of local copyright bureaus are generally between free and extremely low (0-300). The registration fee of the National Copyright Administration is only 3500 yuan. Of course, if you entrust an agency to handle it, the usual cost is only about 1000~2000. With so little money, an enterprise can be destroyed. You still think it's useless?