Surely, it's a case of each person only having 10 or so apps that matter to them, but it's kinda a different 10 for everyone.
Like the old, 80% of users only use 20% of the features. But it's a different 20%.
Like the old, 80% of users only use 20% of the features. But it's a different 20%.
What @dhh's argument reduces to, is that the long tail doesn't matter. But only, it really does. But as you say, the long tail is what makes it a great UX for users.