If you no longer want to receive email notifications every time another member replies to a post you either started or joined in on, all you have to do is unfollow the post and you’ll no longer get notifications for that post.
On your mobile. Go to the post you want to unfollow and tap the “- Unfollow” link in the top left corner of the header, just under the Gloryhole logo. See screenshot below.
On your desktop. Go to the post you want to unfollow and click the “- Unfollow” link in the top right corner of the post body. See screenshot below.
If you choose to follow a post (even if you have not joined in) or want to re follow the post you unfollowed, take the same steps but instead of “- Unfollow” you will see “+ Follow”. You must be logged in to do this.