TKF has 15 local chapter scattered around the Great State of Texas and beyond. These forums, although "hidden" from normal traffic are available to anyone who has an interest in joining in with other "local" anglers to plan meetings, trips, get-togethers, and other "local" business. You can pull down the list of chapters by clicking on the "Chapters" button in the lighter menu bar above each forum page. When you click on that list, you should be able to find a local chapter very close to you. The advantage to these being "hidden" is so that chapters can conduct their business in relative privacy and to keep spammers from causing havoc. No one is excluded from joining a chapter unless he/she has already had problems on other forums. All they require is that you click on "Join this chapter" which sends a request to join to the moderator of that chapter forum. Once he gets the request, he can activate your membership. Then, when you open up the TKF Index page, your local chapter will appear as one of the regular options. You can then keep up with "local" news and conditions and join your buddies for trips to YOUR local waters. But, if you don't send that request to that chapter moderator, he can't activate your membership. He can't do it over the phone or with an email.
I hope this clears up some of your questions about open or closed forums/chapters.