Agreed - Slack is awesome for small teams that need to communicate frequently, but it's definitely not ideal for larger "societies" (as you define them). I've

Agreed - Slack is awesome for small teams that need to communicate frequently, but it's definitely not ideal for larger "societies" (as you define them). I've been invited to a bunch of Slack groups recently, from post-conference groups to ongoing groups around a specific topic (SaaS startups) and every single one of them is a ghost town now, often within a matter of days. It seems few people have the bandwidth to actively participate in these "societies." I much prefer traditional forum-style software for this purpose, leaving Slack (and real-time communication methods in general) for team-based communication.