The traditional moderator role focuses on the problems of a community. People might post bad things, conflicts might erupt etc..
Moderation doesn't have to be a reactive process focusing on what can go wrong in a community, it can be a more encompassing role which both removes the barriers to participation and motivates people to interact.
- Resolving conflicts/removing bad content
- Structuring the community.
- Dissipating and concentrating activity
- Stimulating discussions