Don't know. It seems that theres more chatter over there 'cause of the link from blender3d.org. The forum here is much nicer though.
Well, the two sites serve kinda different purposes. blender.org is more about discussion about Blender itself (and it's development), while elysiun.com is more about community, 3D art, artist's resources, etc. In my opinion, blender.org and elysiun.com should be seen as complementing each other, rather than competing with each other.
It would be nice though if more artists came over here too and gave their input into future Blender directions and developments though (being that Blender is
a graphics tool).