I can’t remember who you message when you see nasty comments. I don’t mean like basic swearing or he is so hot,etc. I mean down right nasty inappropriate comments. I am watching episode 12 King of High School. this stuff seems more prevalent lately and it is done in person. It also, seems they stick these comments in the older dramas.
You should contact the CM or English Mods. to remove the nasty comments. 
I went to episode 12 of King of High School and removed the comment by someone whose name starts with sam – I agree particularly crude and inappropriate for a romantic comedy.
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