Well the hope was that hive mind was going to solve some of these issues and group content in a better way for the users. Grouping content for users and communities so that our feeds were a lot more relevant. Since there has been no mention of it again it might be a while coming if at all.
That leaves a big gap on the site for what you are trying to do. I have to say partiko is so easy to use that if they could combine your vision with their app it would be very hard to top.
Posted using Partiko Android