AutoSchedule is great and many of us use it. However sometimes it would be great to not AutoSchedule on certin days/time periods. Great examples are over the Christmas break or public holidays where you want to manually post something.
Example: my company does not want to post general content from 25 Dec to The end of the first week in Jan. With block out days in place general content can appear after this period in Jan and we can manually post Christmas content during this period. It can also help for other holidays or other specific reasons.