I appreciate that scaling at Facebook must be another world to most developers but do they really have to start with such a small userbase each time? I knew the

I appreciate that scaling at Facebook must be another world to most developers but do they really have to start with such a small userbase each time? I knew the app was restricted to a few devices, but didn't realise it was US-only as well. With the amount of scaling experience they have by now I'd have thought they had the resources to launch a little bigger.