Fires just before pinging back links found in a post.

Filters the comment author’s user ID before it is set.

Filters a post’s comment count before it is updated in the database.

Filters a comment’s data before it is sanitized and inserted into the database.

Fires immediately before a comment is marked as Spam.

Fires immediately after a comment is marked as Spam.

Fires when the comment status is in transition.

Fires immediately before a comment is sent to the Trash.

Fires immediately after a comment is sent to Trash.

Fires immediately before a comment is unmarked as Spam.