I'm one of CR Sam's lurkers that didn't start posting until late last year. I looked in since the beginning of 2001 and watched TFL grow but maintain exceptional focus and order. I assume this is not only due to the efforts of the moderators but also the members.
IMO, I think some people want to loosen up the content of the boards here because there are people with a lot of knowledge and experience about many other things in addition to firearms. Having those people respond to other topics would bring good discussion. But it would be impossible to keep such topics in check and still maintain order.
I don't want to trash any other boards, but I've seen people post reasonable questions elsewhere and watched the thread degenerate into either a feces-flinging fest or complete nonsense--without ever even readdressing the original question.