How can I make guest to see only categories and threads names inside categories (without posts from users).
You can make guests only view specific pages by using the plugin ForceRedirect and editing the array with the list of pages/controllers you don't want to be seen.
In this case the only controller you would allow would be the Categories Controller , Sign In , and Registration.
❌ ✊ ♥. ¸. ••. ¸♥¸. ••. ¸♥ ✊ ❌