Places with more to the left/right policies and discussion would probably had more audience, they will be a gathering place.
About the impact.. we are certainly quite mainstream in the narratives we use...so I guess an organic growth would be enough to have impact three four years down the road..it is highly probable that we do not need the exponential growth to obtain some relevance... or at least this is what Jerome expects. Again..some years down the road.
A pleasure I therefore claim to show, not how men think in myths, but how myths operate in men's minds without their being aware of the fact. Levi-Strauss, Claude