The X-Treme Detail Military Collectibles boards used to be hosted through there since it's a relatively small and privately run community... They have a separate forum now, but I can imagine the turmoil that would've caused. Those guys go ape**** when their site's down, like it's crack.
There's some good modeling forums on there with lots of tips and tricks archived. Sad if that stuff's lost from a customizer's standpoint.