Opt-out vs. Opt-in is arguable. Given the severity of alerts, I think opt-out provides the most utility to the population. These alerts are coming directly from government organizations, "deals from Costco" should have no bearing on the decision.
Totally agree. As I understand it, this is in case of "real" emergencies as assessed by government bodies.
The revenue is not going to come from ads being served along with the messages. It is going to come from the customization, implementation and support of the technology.
Exactly. (at least in way that I've proposed the service)