I'm sorry, but I don't follow you. I guess you'd like to disable the Forum and Topic Viewers Tracking, right? 

If so, all these information are controlled by five options, please check them out:

1. Track Forum and Topic Current Viewers (Forums > Settings > Features Tab)
2. Display Forum Current Viewers (Forums > Settings > Forums Tab)
3. Display Topic Current Viewers (Forums > Settings > Topics & Posts Tab)
4. Display Topic Recent Viewers (Forums > Settings > Topics & Posts Tab)
5. Display Admins with Topic Viewers (Forums > Settings > Topics & Posts Tab)

   I want to post a topic without reviewing it. How do I set it up? Thank  you！

             BEST WISHES!

      Thank you again！I had do it.

      But the  login page is not better than the registration page, you can see the picture on the up reply.

              best wishes!

You can install and use any Social Login plugin. All that plugins will add social login buttons in wpForo User Registration and Login pages automatically. Just find some in wordpress.org:

https://wordpress.org/plugins/search/social+login/

           I am sorry，i want ask another question, can the forum open the port to sign in with the third company, for example the Facebook and some China social button, i saw the Facebook can sign in，but i want to know if it can achieve this effect like the picture ,if you need China social button, i can help you.

                    best wises!

       This is registration page in the attachment，please check in。

       This is login page in the attachment，please check in。

We've just checked the login and registration pages of your website and everything displays as it should. See screenshot. 

Thank you,  your method is very good!

But it have another problem  is When I log in with my phone, the username box and password box are long out of range,Can you do with it?

      Best wishes!

Please navigate to Dashboard > Forums > Settings > Styles admin page, put the following CSS in "Custom CSS Code" textarea. Don't forget to delete all caches before checking.

@media screen and (max-width: 620px){
   #wpforo #wpforo-wrap {
     padding: 0 !important;
   }
}
@media screen and (max-width: 620px){
   .ast-container {
      padding-left: 8px !important;
      padding-right: 8px !important;
   }
}