This very dilemma seems to me an impetus behind the trust level (TL) labels (Basic, Member, Regular, Leader, Elder) of Discourse. The “roles” that your ____ have can be based upon the nature of the community.
An example hierarchy for a trade-related community could take a hint from history and have Apprentice, Journeyman, and Master Craftsman. For our German-speaking friends here, these would traditionally be Lehrling, Geselle, and Meister.