Thanks for sharing your website promoting the zero growth concept. I rapidly read your initial article 'why zero growth'? and I found it well written and thoughtfully argumented. I agree and share most of your points. Also I think that the urgent necessity to promote awareness on such issues justifies that we, concerned humans, multiply such messages, each with some personal wording, until these voices become a universal chorus capable to really change our actual primitive and stupid global social trends. Therefore redundancy is not harmful, it may reinforce all our similar messages.
Regarding your call for zero growth, in my mind this makes sense provided that such zero growth is calculated in an overall global world basis. Therefore, if you accept to be just in such proposal, this would mean that in the present world inequity and maldistribution, it would be quite unfair and hypocrite to say: each one stops now at its present consumption level, as it would simply mean that the haves would be assured for the eternity with their actual advantages, while the have-nots would be condemned to misery for the eternity in such an overall zero growth agreement.
The above means, that if the zero growth is to be applied to the overall world consumption, a necessary equitable redistribution would necessarily require a 'negative growth' for those who consume above the world average, as only zero growth is not enough to achieve any good.
Taking your obesity example, imagine a family with 4 children, one of them sick of obesity and compulsive appetite. Now imagine that the father has a limited and frugal income that requires to ration expenses and food distribution to the members of the family. As long as the gluttonous kid consumes 5 or 10 times more than his brothers, these brothers will suffer malnutrition and risk to perish. In this case it is clearly not enough to limit the gluttonous son ration at its actual level with a zero growth rule. I hope that this simple parable will be useful to clarify my point.
I wish you great rewarding in the mission you are undertaking, and hope that these short comments will find some place in your thoughts and further developments.