How can I have more permissions in Tales of Pirate

Discuz! set user permissions according to system status and credits. Credits are related to your posts number, how you are rated or both. You may have more permissions when you get more credits. As soon as you make a grade of credit, the system will give you more permission and Star(s). Therefor, higher credits not only show your seniority and liveness but also bring you more advanced permission than other users.