Notification when user posts a comment on a community post

You can simply follow the topics

When you follow content, you are subscribing to it, so that you will be notified by email when new articles, posts, or comments are added. 

Hope this helps!!

-sushant

Thanks, Sushant, 

However, this doesn't appear when I sign in. Why would this be?

Thanks

Scarlett

Hi Scarlet,

Seems to follow checkbox is unchecked from theme settings.you can simply check it and you should be able to see follow button.

Check this gif on how to enable follow button

-sushant