I think there will bias toward the "mod's" POV, yes, but it's a rather soft touch relative to outright moderation. Currently there are also many users who have a trust level similar to my own.
We do plan to have each user have their own web of trust eventually - meaning they are the mod for their own SN experience.
The alternative to trust webs are trustless ranking algos, which we also plan to experiment with, but those are hard to design in a way that lets users posting content earn.