There are 3 different levels of privileges on Switchboard: user, moderator, and steward. "User" privileges are just the basic functionality on the front-end (e.g. posting asks/offers, commenting, and messaging) and back-end (e.g. profile editing, editing interests, and adjusting personal settings), but "moderator" and "steward" privileges are different. Ultimately, both provide access to Switchboard data and administrative functionality, but to varying degrees, to help you serve the Switchboard's mission and uphold the community standards.
Check out the Introduction to the Founder Dashboard for a full tour of steward and moderator features.