[cheetos]

This isn't true. I think you need to expand your horizons beyond the tech world :) I suspect if you ask someone outside of the tech world in the US, they'll tell you Facebook. Outside of the US: WhatsApp.

Twitter: 500M tweets per day https://about.twitter.com/company

WhatsApp: 13B messages per day http://venturebeat.com/2015/01/06/whatsapp-now-has-700m-user...

Facebook + FB Messenger - WhatsApp: ~30B messages per day http://techcrunch.com/2015/04/22/facebook-voip-not-facebook-...