Now today while "spying" on the steemit github, I discovered this : https://github.com/steemit/condenser/wiki/Community-Spec-%5BDRAFT%5D
What caught my eyes is that it is currently being implemented.
The development has been very slow. Last time that page has been updated was April 5.
I suspect that we are not going to see the community feature implemented anytime soon.
see hivemind github