The mobile phone junk text messages are "harassing", mostly pranks, "yellow paragraphs", and gossip; there are "trap", mostly cheating users' money; there are advertising text messages, and the text message business does bring a lot of money Profit, but some text messages are becoming a kind of "information nuisance", which makes people unbearable. Some new companies eager to develop new customers send a lot of text message ads. The majority of spam text message producers are operators. Product operators, scammers. Now it is time to improve the relevant regulatory regulations as soon as possible, and first control the SMS service provider. The tumor of spam SMS will be eradicated sooner or later. What's best for this text title? ['Spam messages become a public nuisance.', 'Effectively manage spam messages.', 'Why spam messages are repeatedly banned.', 'Legal supervision of spam messages is not yet in place.']