I have a feeling reading these "early responders" that many would like some kind of feedback. It would take me a long time to give a long analysis but, from now on, I may give feedback for improvements. I just hope these are taken positively.
I would also encourage everyone to help each other. The subject areas covered are already very broad that you may well not even recognise some of the other names in the comments. This is an opportunity to use these Signup pages as a source of networking. You may even find that you have expanded your friendships without "winning" - that, to me, would count as a success.