I had great hopes for communities that they have yet to fulfil. They ought to be something like reddit so people can find content they like. The Hive userbase is still pretty small and so many interests will not be well represented yet. There is the opportunity to build communities by bringing people in if you can find sponsors who have enough HP to make them work to start with. I know @slobberchops is trying to do this with urbex (urban exploring).
It is up to all of us to find ways to bring people to Hive if we want it to prosper. If it can take off in niche areas it may have a chance.