Trendon Shavers (also known as Pirate40 on bitcointalk) is currently being prosecuted in Texas by the U.S. government for operating a bitcoin Ponzi Scheme.
According to U.S. law, your scheme is not a MLM (Multi-level marketing) organization or Direct Selling organization. In order to be considered a legal business (such as Amway, Tupperware, etc) in the U.S. you need to have actual products that are being sold to customers. There are a set of other specific conditions that the company has to meet to be considered a legal business in the U.S.
If you are not in the U.S. you'll need to learn more about your own local laws to determine if your scheme is illegal.
@DannyHamilton As I can see OP has described his plan as direct commision and indirect commission distributed in a chain of members. I dont see any problem in direct commission. But do u think even indirect commission distribution can be regarded as illegal under any law ?
As I have read, Trendon Shavers had return liability, which is obvious in any Ponzi and that is why they are destined to fail at some point of time. But this is not the case here. Referral commissioning happens even in banks when an agent gets a new customer for the bank and that commission goes upto the team leader or higher ups. They are not Ponzi.
I think terming anything that distributes commission as Ponzi is wrong.
The OP has modified his post and added additional details after I responded. Initially, he was just claiming that he had a "Poniz based idea", without any details about how it would work.
What he is now describing is not a Ponzi scheme, but more likely a pyramid scheme which is also illegal in the U.S.
In the end, it will really depend on the details of the business. If the entire business consists of nothing but recruitment, and passing registration fees upchain as a "referral bonus", then it will be illegal in the U.S.
If, on the other hand, bonuses are based on the retail sales of actual products and services, then the OP has a much better chance of creating a legal business. In a situation like this, the devil is in the details. The OP would be best served to retain the services of a lawyer that is familiar with the laws regarding network marketing, direct marketing, and multi-level marketing in the jurisdiction that he wants to operate his business. Otherwise, he is highly likely to run afoul of laws and regulation in that marketplace.