I honestly don't know anyone that wants to use KR-specific services, including Koreans themselves. At least for this generation, they know that everything is surveilled on a level that even FAANG does not do - discussing questioning being LGBTQ with your friends gets sent to your parents, depression jokes get sent to your parents. Phones are keylogged, parents are notified if you search for things like 'pregnancy'. The mandatory by law first keylogging app also had so many vulnerabilities the government pulled it and told people to use others due to how bad its security model was.
Security is consistently and always an afterthought in SK, and I honestly don't know why. There are numerous anticheat providers based out of South Korea, and the engineering in them is always absolutely terrible. Like, indescribably bad. Unlike EasyAntiCheat or Battleye for instance, the KR ones frequently like things such as inventing your own crypto that's broken, sending PII and collecting user personal information, clipboard, files and sending them over the internet unencrypted to a bare Korea Telecom IP plaintext. They also love broken, vulnerable kernel drivers in everything that can be used as jumping points to execute high privilege code via vulnerabilities. And all of these are used with games that are badly written and full of holes as a bandage.
Free speech is incredibly chilled, commenting and talking is not permitted unless linked to a KSSN in some way (mobile phone, SMS verification, etc - all require KSSN). Heavy website censorship akin to the Chinese GFW exists (warning.or.kr hijack redirects).
Even people on the censorship committee get their comments taken down[0] and aren't allowed to speak badly about it.
[0] https://www.eff.org/deeplinks/2011/08/south-korea-only-thing...