Let's talk about another case of making money. Ordinary programmers need to have some basic domain knowledge to do it. Many KOLs, when posting various exchange promotion links, post links that do not require a VPN, and most of these links need to be updated after a period of time. But the content written by KOLs, the old content will actually always have natural traffic. Once the link is changed, the previous link exchange will not renew. Some people (most likely insiders) specifically focus on the domain names of various exchanges, and as long as they do not renew, they buy them to intercept traffic. As a result, any content previously posted with this link is replaced with their own invitation code. He ate all the previous batch of link traffic of KOLs and used this method to earn a lifetime commission. How did I know? When I was promoting the OKX link on Weibo, I was tricked and gave feedback, but it didn't work. There were no punishment measures, so let's forget about it. I will publicly share this way of making money and let everyone go and earn together.