A Group owner or admin can post a notice in the group. They then can tag a box so that this group notice will not expire/disappear in 2 weeks. This will be helpful when you want an object or notecard or certain instructional messages to be available for a longer period.
It would prevent me (and other group owners/officers) from having to repost certain things (and forgetting that i have to) I also see it in other groups where admins point to a notice with instructions or an object and then realize it is gone and they have to hurry to repost. It could be limited to a certain number to not strain servers but i think it would bring server load down. I am not that tech savvy so i hope i explained it well.