As I understand it, not being a member of Facebook, a club or whatever can make their facebook pages public. I can certainly see some folk clubs' or festivals' facebook pages. I can't post, of course, and I have to put up with the 'log in or join up' banners, but I can see announcements.

I assume the reason that many clubs don't is digital incompetance or lack of imagination - they can't imagine that anybody can not be a member. Or are there problems with making a site public?