Instagram tops 100 million active users per month: what policy uproar?

Instagram started reporting its active user base in what many saw as an attempt to quell talk of an exodus following its terms of service debacle. It has a better reason to post hard numbers today, however: there's now a neat, tidy 100 million active Instagram users every month. The milestone suggests that another 10 million mobile photographers got hooked on square-shaped photography in about five weeks, and it implies that the Facebook-owned company isn't about to slow down just yet. Not that everyone is in a position to join the party, mind you.