I think Climate Colab is great. They are coming at it from a slightly different angle, which isn’t necessarily any better or worse. It is very contest oriented, with highly structured judging processes. Our objective is to include as many people in the discussion as possible, opening up the dialogue beyond a judged format (which can feel exclusive and prevent some people who might otherwise contribute their voice). Their approach has more of an academic focus (which is natural being a product of MIT). To me Colab feels more like Kaggle than HN/Reddit. Awesome work though!