Registration Required to view threads or not?

[Wayne Luke]

On my forum new registrants have access to three forums - Site Rules, Announcements, and Introductions. To gain access to anything else, they need to be a member of the group in one of the online games that we are currently playing or vouched for by an existing member as a friend or loved one. All growth is done by word of mouth, I don't even think the site is in search engines and we don't want it to be really because that just leads to spam.