As a notification user I want to receive a report on daily or weekly basis but I dont want to store any associated data about it like the event frame information or the notification history since I use event frames for other purposes and I dont want to clutter my PI system
Yes. And as stated, an auto-purge would be just fine, since we realize you use the event frame to trigger - but when the event frame is for the sole purpose of the notification, we have no need to keep them, and all they do is bloat the database.