It definitely is. It seems impossible to enforce but high-profile Koreans have been nabbed for things like, use of Adderall. I cannot remember her name, but a K-Pop singer got snagged for her use of Adderall in the states.

I find that Koreans can be surprisingly snitchy. For instance, garbage snitches. A lot of Koreans seem mortally afraid of accidentally throwing away plastic because neighbors would (and do) look at their trash and will report them to authorities for it. They can receive a hefty fine as a result.

A big part of the Lee Sun Kyun "scandal", less reported in the US media, is the fact that he was blackmailed by an escort. Having known very little about this, I thought he committed a mortal sin, but upon reading the allegations.. while they may look bad.. and they are really bad for his family.. they were at the very bottom of the totem pole of vice-seeking behaviors. They're not remotely reason for one to take their life over. Which leads to a broader discussion about Korea.The fact society in Korea makes suicide seem like a better option than the reputational ruination for the violation of what are essentially Christian-conservative values is a shame.