Myself no. A example of use could be:
task: CONCRETE FOUNDATION TANK 03 Alloc to: HORMIGONES PEREZ Start: 02/03/2017 06:30 Due: 03/03/2017 18:30 Core task, locked, in this task is where I writte the comments. This task have to be preserved for proyecto historical records and have values in custom task attributtes, type "$ invoiced", etc. Of course the task that have to be carrefully managed.
subtask: CALL PETER REMEMBER USE CONCRETE TYPE 04 Day-to-day task. High dinamic management. Having made the subtask normally I delete it, or if relevant write a note in parent task to register they realization. If by error delete or modify some date is not funny but is not a disaster.