At 10k/day it'll take them > 40 years to get half the population of the US on board. Or if you prefer, 40 years to get the same number of users as facebook wor

At 10k/day it'll take them > 40 years to get half the population of the US on board. Or if you prefer, 40 years to get the same number of users as facebook worldwide. Not that 10k a day is bad(!), but truly mainstream is something else altogether.