According to the founder [1], Telegram was even removed from Play Store for a few hours at the request of a South Korean competitor.
For whatever reason, somebody in South Korea is seriously pissed off with Telegram.
For whatever reason, somebody in South Korea is seriously pissed off with Telegram.
In recent days, there's been another exodus of Koreans from domestic IM services due to the revelation that the Korean army has been a customer of Hacking Team, the Italian spyware vendor who got hacked last week.
The two incidents might be related.