Communities are a double edged sword. They will make the platform more user friendly and people will find their comfort zones. The problem is people will find their comfort zones and not venture out into the world. This will hurt the Steemit community. As a 1st Gen user of Google Plus I watched it happen on that platform. We were rocking until communities came along and then the main stream became a ghost town.
I know it is human nature to desire this comfort of familiar ideas. I for one am not a fan. Give me chaos and let me learn new points of view.