I'm not completely daft, I know how it works, I was making a maybe not so humorous comment on how things have changed, but this forum used to have 1000"s of people logged in everyday, and now it's maybe 3 users 16 guests and half of those are bots. It's not the same and makes me wonder if it ever was anything. Social media is a numbers game that only matters to people who are making money from those numbers, the "people" don't have to be real if they are relegated to numbers of likes & dislikes.
Closed groups are exactly that, no one in the public sees what is going on, and the likelihood of group think is exponentially higher. I think we have all seen what happens at it's ugliest when group think goes too far, and people start imprisoning or enslaving others, ruling forums, coercing people into private places where they can be made victims. It's disgusting that the fitness community advocates this with multilevel marketing & pyramid schemes, or pure exclusivity. You're not special, no one is.