I know this is going to be an inconvenient reminder for many folks, but: if you play any part in bringing software (or technology in general) into the world, you have an obligation to consider the moral, ethical, and political ramifications of what you are building at every single step of the way. What happened in that village wasn't an accident – it was the result of careful "growth-hacking", design, product work, a…
What exactly is "growth hacking" in a chat app? There were no ads here, no algorithmic timeline, no perverse incentives, nothing that you could potentially consider as malicious. What should WhatsApp have done? Every single post about WhatsApp here has people pontificating about this and that but no one offers any suggestion of what should be done.
WhatsApp is a fairly direct clone of BBM and BBM’s growth hack for want of a better term was to make its users feel like part of an exclusive in-group.