Hey Korrie, I didn't want to make it too complicated or limit weight loss per se.
For example, I could go with losing 2lbs per week for 6 weeks and set a goal to lose 12 lbs, or I could go with losing 1% and lose over 20lbs in 6 weeks, or maybe I would try Lyle McDonald's Rapid Fat Loss Handbook for these 6 weeks and lose 30? lbs or more? Regardless of which goal I hit, I would consider myself winning equaly - if I plan to lose 12 lbs and lose 12lbs, perfect. If I plan to lose 20 and lose 20, also perfect. If I plan to lose 12, but instead lose 20, thats not good because I didn't execute a proper plan to hit my goal.
Just trying to get out of the "lose as much as possible in any given timeframe" mindset and into a "pick an attainable goal and try to reach THAT goal" mindset. Thats why I suggested letting teams and individuals set their own goal, rather than enforce a 2lb or 1% rule or any other rule.
I also think about the july challenge - not criticizing, but some people ~200lbs or less losing >15lbs in a month - great result and great committment - but nearly double the rate of weight loss I would be going for were I 200lbs right now. Thats not to say its wrong for them, but I don't feel like I would lose or do worse than that person if my goal was to lose 10lbs, and I lost 10lbs. If I went by the 1% rule, I would have set a goal to lose 14lbs in july. A 200lb individual losing 15lbs or ~2% would be as if I lost 28lbs in July instead of 14 - I would have been mortified to lose that much so quickly. I would have been seriously depriving my body of calories to do it (think: 3000+ calorie per day defecit), and I'd be horrified at thinking about all the muscle mass I destroyed. If I followed a plan like The Rapid Fat Loss Handbook or something, then maybe its ok if I followed the plan to conserve muscle mass. But just doing it by accident if I only planned to lose half that, would not be good for me.
I don't know, maybe some people really do feel they do better if they try to lose as much as possible in any given time, and maybe those people would feel like they were holding back if they set a goal and weren't allowed to exceed it even if they felt they could. So maye this idea doesn't resonate well with everyone right now, and thats ok.
Regarding the points for hours of exercise, well someone who lifts weights for 45minutes 3x per week, and does HIIT for 20min 2x per week, and rests on the weekend, only has just shy of 3 hours of exercise in a week, but that doesn't mean they're trying less or putting out less effort than someone who might walk 2 hours a day 7 days a week for 14 total hours. When adding exercise to the challenge was brought up, the intent was to measure effort even if the results weren't there. All I'm trying to get at is, it doesn't seem hours spent exercising is necessarily the best measure of effort.
I hope I'm not giving off the impression that I'm just whining that its unfair or anything like that. For me, the challenges have never been about winning, but rather about accountability, support, and encouragement. I've always considered myself as winning if I met my own personal goals, even if someone else has lost more weight than me. I guess if this challenge is going to be more about winning, it might not be fair to the team I would be on, since I'm not going to change whats already working for me just to try to accumulate the most points. I'd gladly be a part of the challenge if a team would have me for the support and encouragement and accountability, but I just wouldn't be too concerned with winning as currently defined.
Pre-emptive edit: I don't know why this just popped into my head, but anyone watch the show "Deadliest Catch" on the discovery channel? Well the idea about setting goals and sticking to them and not trying to lose more than that is sort of like how the crab boats work with their crab quotas - each boat has a quota for lbs of crab, if they catch less than their quota, they don't get their full payment, but if they catch more than their quota, they get fined for going over. Bigger boats might have bigger quotas, and smaller boats less, but as long as each boat brings in their own quota, no more or less, they get paid what they were promised, and everyone wins.