I know it's front-end specific, but communities should be more visible for users and not hidden in a sub-menu somewhere; the way I see it, is right on the front-page of a website, where I don't need to shift my eyes to reach them and subscribe to them.

It's nice seeing curation going niche oriented, the previous method was dismantling smaller niche oriented groups. So now, it's not only easier to find content, but those on super small groups get more visibility.