Hi guys, a couple of suggestions after using the Communities for some time.

1. Inside a community, offer one more way to sort the posts - by last activity (where activity means comments, but not votes). So when I go inside a community, I'd have the choice to see the posts ordered by the last posting activity. The idea is that this will help community members more easily follow the ongoing discussions, similar to how members of a forum see which threads have last activity because those threads get bumped to the top when someone comments in them.
2. In the user feeds screen, on the left-hand side, remove the FAVORITE TOPICS section (it can be moved to the right-hand side) and instead put a MY COMMUNITIES section in its place. I think this makes it much easier for users to go to their communities of interest and doesn't require them to figure out how to do it through the various menus at the top (I don't think most will figure out how to use the menus at the top - at least in their current form they're too complex for the average user). Having MY COMMUNITIES easily accessible on the left-hand side also prepares things for additional social features that could be added later on - I'm thinking things like ordering the communities under MY COMMUNITIES by last activity, and displaying the number of new posts/comments in the community since the user last visited the community. The whole idea is to facilitate social interaction and make it easier for people to find out what's going on that's of interest to them.

Let me know what you think. And thanks for all the wonderful work so far!