I think scopes/criteria/boundaries on communities are fine, I disagree that invite-only (as one implementation of community boundaries) is the future of online communities.
Although the statement "invite-only only is the future of online communities" isn't super well defined (what does it mean to "be the future"?), so I think the comments are debating past each other.
Although the statement "invite-only only is the future of online communities" isn't super well defined (what does it mean to "be the future"?), so I think the comments are debating past each other.