The forum was established by fans of Arnolds Pump Club Newsletter and App - https://arnoldspumpclub.com/
It is not fan-driven and moderated and has no direct relationship to Arnold Pump Club. Of course, the idea is to have an open space to discuss topics, meet likeminded people, help each other out and even coordinate social events and meetups.
Feel free to join and lets make this as well a part of the positive corner of the Internet.