I see your point on this and I also see the gray line you are walking - I want to dictate who enters my house but I really have no right to dictate who uses public spaces. The challenge however is where you place communities on steemit - your (owner of the community) house or a public space. My intuition is that it is neither but somewhere in between which is why this is both an interesting and complicated debate at the same time. It will be great to hear other views on this. @acidyo?