What is the use of reporting spam messages?

Have you received the short message from Teng Xun to report garbage? This function is very useful. His family's rating of spam messages is so accurate because it can accurately identify the numbers that often send such messages. If such a report is received again, the housekeeper's anti-information fraud L can mark this number so that others will not be harmed. Just like its slogan world without thieves. You won't get any more messages from him. Is it useful? Remember to report it later.