The author/Mr. Ma's editor/Mr. Ma's small editorial department shared six sentences about user operation _ The first sentence: The cost of developing a new customer is 3- 10 times that of retaining an old customer. We all know that both new users and old users are important, but if we can only choose one aspect, where should we focus? No matter in any service industry, the answer must be old customers. The question we usually think most is: how to turn guests into customers. To this end, we are all looking for more effective marketing methods and strategies. We have also thought a lot about what kind of products will be more popular with users. However, venues that can usually do these two things well may not be able to continue to operate well. They often ignore the feelings of people who have already paid. At this point, I think we have more say, because more of our users pay per view. Let him be dissatisfied once, and there may be no next time. So this forces us and the coach to score 12 every time we serve. ■