This kind of marketing activities generally carried out for offline stores, such as catering, hairdressing, attraction tickets and so on.

The pyramid scheme refers to the development of personnel by the organizer, through the development of personnel or require the development of personnel to pay a certain amount of money as a condition to qualify for joining the illegal acquisition of wealth. The essence of pyramid schemes is "Ponzi", that is, the money of those who come after the previous person's earnings.