Why would this be intrinsic to a free service? "As of $date, our pricing tier no longer allows for $X GB of data. You have until $otherdate to upgrade before w

Why would this be intrinsic to a free service? "As of $date, our pricing tier no longer allows for $X GB of data. You have until $otherdate to upgrade before we delete the difference." "We're shutting down so here's a refund. Oh, and we're going offline immediately. Bye!" A subscription or paid option doesn't make a business solvent even a little bit. It might be easier, but the business model must still be sustainable & viable.