Line announced on Monday it has hit 300 million registered users worldwide. As a sign of how white-hot the messaging app market is, Line noted that it added 100 million users in the past four months alone. This is especially impressive considering that it took the app 19 months to reach its first 100 million users. Line’s strong recent performance is anchored by its utter dominance of Japan and decent showing in a couple of other Asian markets like Taiwan and Thailand. But what has really defined Line in 2013 has been its notable Latin American success — the app has been on a remarkable winning streak in markets like Mexico, Colombia, Venezuela, Chile, etc. That is why it’s interesting to note that despite Line’s