I think it all lies within this:
ANOTHER SPOILER
Jiwook has lost his memories of the incident. Meaning this is pretty much the same as doing this to an innocent person in some way. Worse stuff are gonna happen to him later on, and although I would understand JY's actions it's very interesting that they added the memory loss part. Vengeance is something, but this is just JY perpetuating the horror on a person who has no memory of such a history with him.
I didn't read the story neither, this is all I have gathered from reading the comments these past months lmao
I also asked whether JY knows that JW has really lost his memory: he does. He knew from the start.
Anyways, I think that although JY's actions are 100% justified (lmao), the memory loss part makes me think twice about it.
I feel no sympathy for jiwook after reading the spoilers bcs I would've committed s if someone made it so I was gang r, took vids of me and sent them to my mother, harassed me in school like jiwook got what he deserved. 14 yr old juyeon was subject to all this torture just for having a crush. so yea idc he getting his revenge. and apparently jiwook did this sht to women too so even more of an asshole.