Action Hook: Action triggered right after deleting a single subscriber.
Function: Delete cache of subscribers.
Function: Delete a single subscriber.
Action Hook: Action triggered right after deleting subscribers.
Filter Hook: This filter is documented in includes\class-form-hooks.php
Method: Add comment subscriber.
Method: Delete comment subscriptions right before deleting comment.
Method: Delete subscriptions.
Method: Update qameta subscribers count before deleting subscribers.
Method: Subscribe author to their answer. Answer id is stored in event name.