They have a captive audience of just about everyone. They can put things in the WhatsApp client and everyone will see it. Almost everyone has WhatsApp, much mo

They have a captive audience of just about everyone. They can put things in the WhatsApp client and everyone will see it. Almost everyone has WhatsApp, much more people than have Facebook. And Facebook is slowly dying. Facebook bought WhatsApp (and also Instagram) so Facebook the company has a future. Because it’s not quite sure Facebook the network has one.