I think we all agree that malicious comments weren't the cause of her death. Sure, it didn't help her. As you've said, she was behaving erratically, the signs that she was suffering were there, right in front of everyone.
But see how this works?
1. A tragedy happens,
2. Everyone mad, angry and sad because of it.(emotionally confused or shocked)
3. Point the finger in a certain direction (lots of articles about malicious comments and knetz being the worst)
4. Everyone starts blaming bullies and malicious commenters, webpages that publish non-flattering things....so on, and asking for someone to take action (who can it be?)
5. Et voila!, after two days, the Korean govt. announces that is planning to make a law about that (ofc, they will say it's about punishing malicious comments)If you oppose, you know, you're a bad person because, my god, don't you wanna do something against bullies?
Also, these days, a lot of people commenting about mental health, how Korea treats mental health issues, not stigmatize idols with mental issues....so on. But no one mentions the main source; how the entertainment industry works. How many idols, actors end up having mental health issues, drug addiction issues, eating disorders, sexual abuse...?