A contract without consideration is not a valid contract. There are a few laws in some places that require companies to provide service outside of a contractual service agreement, but those are typically limited to public utilities, emergency services, etc.
They do. But does their ToS say that your data and attention is consideration for use of their services? I do not believe it does. In fact, it says:
> You have no obligation to provide any content to our services
Throughout their terms, I don't see anything that implies an obligation of exchange.
There are certainly other rights that exist... But contractual rights to a service is not a right you'd have without a valid contract.
You can sue your caterer if they run out of food, but not the soup kitchen.