In white Paper there are details of this limitation. In brief I can say that the tokens of the team members, founders and advisors will be frozen for a period of 6 months to 2 years.
This is a good decision. Immediately one can see the serious plans of the team to launch the project and develop it for a minimum of 2 years.
Thanks to these solutions, I continue to keep tokens for a long time. I think so I can earn a maximum in a year.