[Solved] How do I disable the nag screen?

This already changed and should be dismiss-able by one single click. The issue is you can't update addon and get this changes. However you can disable it manually. You can solve this issue by editing main files of each addon (root php file). In addon folder you can see php file, just edit this file, find this line:

new GVT_API_Manager(__FILE__, 'wpdiscuz_options_page','wpdiscuz_option_page');

and change it to this:

//new GVT_API_Manager(__FILE__, 'wpdiscuz_options_page','wpdiscuz_option_page');

It should look like this:

Thank For info.