IMHO, It's better to have slow start and long live instead of fast start and fast death.
I prefer you do not attempt to push everything you have to share in single day. It will be good if after 4-10 years C9 site will be active and filled with fresh content.
You can simply keep things just like they are and slowly evolve into something bigger.
Remember - even God have spend 7 days to create human. You need a lot of time to change World a little bit.