Stephen - if we were to just post when our BMI changes, we wouldn't post as often and the point of the forum is to give regular support. I appreciate that when we change from morbidly obese to just obese and then to just overweight and then to normal, we will feel pleased but these posts would be too far apart.
Also for many people who are overweight (which is what the WLG is for) they may not wish to disclose their weight and by disclosing bmi this similarly gives an idea of how much overweight a person is. This is quite sensitive information to a lot of members of the group. It doesn;t matter whether a person has 1 stone to lose or 10 stone, a weight loss of 2lbs is to be applauded. Over a month we have had members losing a good 0.5 to 1 stone initially and it is this that benefits our health. If we looked at reduction in BMI, I don;t think it would be as motivatiing. Also just for thought, my PT is a lean machine who is so fit and has absolutely no fat on her at all, yet the GP tells her she needs to lose weight based solely on her bmi - however her muscle is heavy so her bmi is affected. So in my opinion the BMI isn't always helpful.
We also post our nsv's too which is where we can post other things we notice due to weight loss but not directly related to the scales. I have posted my measurement loss, which I find truly satisfying,
Is there a reason you visited the WLG as I note you are of perfect build? I wonder if you have any additional information on BMI which you may have found was useful? Or was you just wandering the forums?