The problem I have with the SSPL is that Section 13. Offering the Program as a Service seems pretty vague. Here's the part I don't understand. > Making the fun

The problem I have with the SSPL is that Section 13. Offering the Program as a Service seems pretty vague. Here's the part I don't understand. > Making the functionality of the Program or modified version available to third parties as a service includes, without limitation, enabling third parties to interact with the functionality of the Program or modified version remotely through a computer network, offering a service the value of which entirely or primarily derives from the value of the Program or modified version, or offering a service that accomplishes for users the primary purpose of the Program or modified version. Does this include services you don't charge for? For example I might offer services for marketing reasons. At what point is the service no longer primarily derived from the Program? For example if I build an application that offers query capabilities but does not expose the Program API, does that count? For contrast GPL V2 worked because it tied virality to linking, which is pretty easy to validate.