If we figure that the engineer count scales linearly to the user count (which I don't actually think is true), then you've just justified twitter having 2,600 e

If we figure that the engineer count scales linearly to the user count (which I don't actually think is true), then you've just justified twitter having 2,600 engineers. That is, if Instagram had 13 engineers for 1 million users. (they likely had less engineers but more users though).