This is a bit tedious, but once done it provides you with email notifications of new category posts and the additional step provide you with comment notifications, too.
1. Log on to the forum You will then be at the main page :

2. On this example note that the first category says “follow” the next two say “following”. By clicking on the FOLLOW word, you will then be following and will get notifications of all new posts only.
3. To get notification of all comments on an individual post, click on the 3 dots, upper right and select “Follow Post”

4. Repeat these steps on all categories and individual posts you want to follow. When reading new posts, be sure to elect “Follow Post” if you wish to be notified of all comments.
5. You can reverse this at any time when you no longer desire notifications.