It is very nice for me as spare-time webmaster to see that this site is used as much as it is.
However, apart from the forums where all users can post, most of the content currently is provided by and for R3.
It does not have to stay that way! The site is built so that both information common to all communities, AND information specific to each community, can be contained. Users belonging to one community will see the common information and the information for their community.