I don't know why this comes to mind, I guess because I'm so terrified of data loss, but for some reason I imagine someone who was using MobileMe to store important data and thought, "Well it's the cloud, it's safe, it's there indefinitely." And I imagine that person has been on a two year research trip to the middle of some jungle area without Internet access and once they return to civilization they'll find out that MobileMe was discontinued and all their data is gone. Makes me feel sad for that person, if he or she exists.
I mean presumably most people found out that it was being discontinued. But with most types of storage, you don't need to check your e-mail constantly to find out whether your data is in risk of being erased or not. I think most people approach the cloud as "set it and forget it." And given that MobileMe wasn't too popular, I wonder how much it would have really cost Apple to keep the accounts open?
I was recently pleasantly surprised to find that freeservers.com was still hosting files I had uploaded with them over 12 years ago. It was a fun walk down memory lane, and I never paid them a cent.