You don't need to scale it some how. 200 million users isn't worth less today than 200 million users yesterday or tomorrow.
EDIT: actually if anything, 200 million users today are worth much more as people are much more likely to spend money online etc. A business's relative position in the online space doesn't affect how viable that business is.
it does matter. if the rate of growth of US internet users was greater back then, then it could be assumed that internet based companies would grow faster.
EDIT: actually if anything, 200 million users today are worth much more as people are much more likely to spend money online etc. A business's relative position in the online space doesn't affect how viable that business is.