Why do you recruit so many programmers for the same trip recently?

If you travel, there are quite a lot of people before New Year's Day, because some people get the year-end bonus and paid annual leave if they have money, or because of the huge data in the coming year, they want to recruit more people. Another important reason is that many people quit at the end of the year. If they recruit people, they are preparing for the Spring Festival, mainly to reserve.