This is an article written by 0Fu on Zhihu, it is recommended to note the source.

Divided into three types of people
1. Extractors
2. Smart traders
2. Rule breakers

The extractor, as the name suggests, is someone who does not participate in the betting but extracts fees or acts as an intermediary.
- Those who earn commissions from exchanges. Don’t look down on them; it’s normal for big YouTubers and Weibo influencers to earn over one million RMB in commissions a month. Top YouTubers like MoonCarl can earn tens of millions of dollars in commissions a year. Additionally, computer knowledge is very useful in this field; there are professional SEO teams that specialize in keywords for this area. Sometimes when you search for an exchange's name on a search engine, the first search result is their referral link. Such top SEO teams can earn hundreds of thousands to millions a month during a bull market.