Should know better than to rely on and pay for a service without some kind of assurance that it won't simply be switched off with little warning. Maybe expect a

Should know better than to rely on and pay for a service without some kind of assurance that it won't simply be switched off with little warning. Maybe expect a bond big enough to keep the service running in its current form for N years? It's better for potential users to be aware of how often this happens, than go on in ignorance of it.