I like the general idea of post-meetup reports, although not every group might be willing to. Or the smaller groups (such as my local one) might not have that much to share.

Maybe a couple of groups should just give it a try, by way of experiment? Just write up a report after the meetup and share it here. And to set an example, I'll be suggesting this to my own group and volunteer to do it. (Although, as said, my local group might not provide good material. Or we might. We'll find out.)