What you are seeing though is the trick they used to make 'net income' pop. Let's say they had a million servers and a server costs $5K each. When depreciated at 3 years that is $1.6 billion dollars a year of depreciation. But you stretch that out to 4 years and now its only $1.25 billion dollars in appreciation. Since depreciation is subtracted from revenue you just "bumped" up your revenue by $350M and you didn't have to do anything at all (except change how you treated your assets).
That they had to resort to this level of shenanigan to get their revenue numbers up is interesting to me.