Clay Shirky’s essay A Group Is Its Own Worst Enemy is a couple of years old but I found it personally resonant right now.

“And, finally, you have to find a way to spare the group from scale. Scale alone kills conversations, because conversations require dense two-way conversations. … Live Journal does the best soft forking of any software I’ve ever seen, where the concepts of ‘you’ and ‘your group’ are pretty much intertwingled.”