Blackboard (which I can't stand) recent posted this message.
Why not give me a countdown? It is trivially easy for a computer to figure how long till the outage, I have to think about it for a while. This would be useful info. Not just an announcement that I kind of ignore.
Aside from being able to use visitor parking, ditching Blackboard was one of the greatest perks to graduating from BYU. Unfortunately, my grad school has something similar to it, minus the worthless outage notifications (so far).