There's a difference between decline and lack of growth. Facebook, at this point, has most of the internet connected population of the world signed up. That's a

There's a difference between decline and lack of growth. Facebook, at this point, has most of the internet connected population of the world signed up. That's a huge deal, and it means that even if Facebook MAU/DAU don't grow, they're in a good place to grow revenue, just by being the de facto gatekeeper for advertising going forward.