Some people I know actually do that kind of thing, rather than a guy on a pulpit talking to the congregation they just have a group and everyone can contribute. There might be a leader (pastor) but he's more like what a shepherd actually does, guides the discussion, makes sure people keep on topic, etc, he isn't the authority that current churches place him as. So it's more like a discussion here, rather than an authority telling people how to interpret the scriptures.
They say their setup is more biblical too, the current liturgy and power structure in the church has much influence from pagan sources. An interesting book on that subject actually is
Pagan Christianity? Exploring the Roots of our Church Practices.