I've given that some amount of thought and haven't really come up with a solid conclusion yet. The board you mentioned doesn't really fit. I can cull information off of the other boards about diet, training, supplementation and AAS use, but since it's so widely demographed it's not clear how to break that up based on the issues older bodies face.
As we age, how our body reacts to training and diet regimines changes. Andropause is just one of the things we might encounter as we age, which is an addional issue to deal with.
I will keep thinking about it though. It won't serve anyone very well to just have another board if it can't generate enough participation.