Responses
I totally agree with you on most of this. While it was indisputably wrong what Dohyun did, I depends on the person whether they think he is getting what he deserves. If you believe in the "eye for and eye" teaching of Hammurabi, then you agree with what Sungho is doing. It all depends on your sense of justice.
I also agree with people who have never been though something like this trying to judge it. It makes it hard, especially when you try to think in black and white.
All this talk of what's right and wrong is for those who haven't experienced enough to know that morality is just a nice little set of rules that was never written down. For some people, that little list never existed, for others that list was blurred and rewritten completely, and for some, we've discovered the list is nothing more than a suggestion that sometimes doesn't suit the situation. This world isn't black and white. Sungho can be considered mentally weak or gullible. Or maybe a victim of coercion and rape. Dohyun my be a victim, or the may be getting what he deserves. I personally believe in Lex Talionis, so I don't think Sungho is entirely wrong, but the breaking the arm and starving Dohyun is too far. Oh well. Thoughts from a random fan.