I play for fun. Screw rank, for the most part.
I have a few projects like "fuck - you" and osq2osb which are SB-related. Sometimes when I look at #mod someone is in need of a storyboard, so I help them with that.
I'm on the support team. Woo!
I playtest maps for people if they ask. I think playtesting (with the mapper spectating) with a few comments afterwards is the most effective form of modding.
The community is great and I ... support it quite a bit, if you can call it that. =]
Distributions? 35% playing, 30% community, 20% storyboarding/coding, 10% support, 5% modding.