any site takes some time to get up and going.. especially if its a specific forum like emanage... not too much people know about it so not alot of things will get answered... my forum xproductionz.com has been up for a few months already and i only have 70 members on there yet there are over 1000+ posts only because its not topic specific.. then you look at emanageforums.com and they have 415 members yet only 520 posts.. thats roughly around 1.2 posts a person.
but give it some time once.. not much people have emangange but soon enough it will get big