Why do so many people think that 176 is not good?

In fact, the use is the same, but 176 and 175 give people the feeling of counterfeiting. After a long time, more people used it, and everyone got used to it, so they accepted it, but they couldn't accept it at first. Because there used to be virtual numbers of 170, 17 1, all these numbers were used to call for sales promotion and send text messages for fraud, so 17 began to be resentful.