This filter allows you to prevent the newsletter signup from showing up after the plugin is activated.
This is useful if you have a large multisite network, and don’t want to repeatedly see the signup box for every new site/user you create.
This code prevents the newsletter signup box from showing up after the plugin is activated.
This filter is located in /admin/class-admin.php
The code needs to be placed in the functions.php file inside your active theme folder.