Good clarification Andrew!
Terraforums is the most active CP forum that I am aware of and I think exceedingly well run and moderated. As you know, I am Admin on the ICPS Forum and our rules are much more restrictive -- you must be registered as a member and approved by an Admin to post and we allow no sales or trades -- simply because we wanted it to be a different experience. The result is we have only just over 2000 members and a little over 32,000 posts. In contrast, Terraforums has more than twice the members and over half a million posts!
People that quit a forum because they don't like the rules are just hurting themselves. Personally, I find Terraforum rules to be quite reasonable.