We have some interesting ideas around the discoverability of content which we are going to experiment with after communities ship. Right now, there is pretty much one moderation/curation pool on all of steemit, and it's pretty much large stakeholders doing most of the primary moderation.

With communities, the individual admins of communities can decide who can post or what gets posted in those communities, and by featuring specific, well-managed communities there are good ways of bringing carefully curated content (curated based on the preferences of those communities versus purely on stake) into view.