I did this a couple years ago with a group from WW. It was fun, but then people petered out of the group. I think I earned the bronze medal, but never ordered it.
Yes! I've gone through bronze, silver, and gold and am 52% through the platinum, which is taking forever. I don't order the medals or anything. It's fun working toward a goal. I got my son into it, and he got his girlfriend into it. 3 Fat Chicks has a group you can join.
I just signed on today for the challenge. This looks very interesting to see how well I will do. I don't really care about the medals but it would be something to work for since I am a goal oriented individual. Where is the 3FC group located?