With the Release 22.2, there was a functionality introduced to allow
Users to Edit/Delete a Comment within 7 seconds before it becomes
permanent. But this option is only available of the Access Level option
"Never allow users to delete comments" is deselected.This functionality
needs to be separated from the more permanent access level, so that
users can update a comment within 7 seconds if they need to and not have
the ability to later delete a comment.