When a person is added to a task they should be getting all notifications from that task including comment notifications.
Please make it so that when a person is assigned to a task, either by themselves or by someone else that they get all task notifications including the comment notifications. Currently they have to make a comment before they receive notifications from the comments when someone else makes a comment. Also being able to unsubscribe and resubscibe from the comments would be helpful. As a person finishes up a task and passes the torch to someone else it would be nice to unsubscribe from the comments. Another part to this would being able to tag @sam some one in the comments section so that they get a notification that someone has mentioned them.