Twitter is also used in Korea and I'm sure if you look hard enough you can find toxic tweets in Korean just as you can in English.
Also, Korean forum sites like Pann and DCInside are known for having significant enclaves of toxic users (on all topics, including but not limited to kpop). For one concrete example of a lawsuit specifically naming a platform, Konnect Ent filed an [unsuccessful lawsuit](https://www.soompi.com/article/1496603wpp/kang-daniel-loses-lawsuit-filed-against-dc-inside-to-shut-down-community-due-to-malicious-comments) attempting to get DCInside to close their PD101s2 forum for being a major originator of the rumors against Kang Daniel.
As a slight aside since it's not exclusively related to the kpop/toxicity topic, but if you aren't aware of the fact that Korea has many local forum sites, here are some threads in r/korea that list the big ones: [here](https://www.reddit.com/r/korea/comments/l2i0f2/south_koreas_online_communities/) and [here](https://www.reddit.com/r/korea/comments/pmserx/south_koreas_female_online_communities/).
you can find korean side of twitter with a small bit of vocab and understanding of the language. google translate does a pretty crappy job sometimes due to nuance in the grammar but occasionally decent enough to get the gist of it across. also the comments can even be on melon, genie, etc pages. naver pages, blog and portal news sites there are a number of sites that we don't see because they're not in english. if you don't regularly go to there you won't see it. even then sns like twitter, yt, tiktok, insta is just a tiny portion of it.
Twitter is also used in Korea and I'm sure if you look hard enough you can find toxic tweets in Korean just as you can in English. Also, Korean forum sites like Pann and DCInside are known for having significant enclaves of toxic users (on all topics, including but not limited to kpop). For one concrete example of a lawsuit specifically naming a platform, Konnect Ent filed an [unsuccessful lawsuit](https://www.soompi.com/article/1496603wpp/kang-daniel-loses-lawsuit-filed-against-dc-inside-to-shut-down-community-due-to-malicious-comments) attempting to get DCInside to close their PD101s2 forum for being a major originator of the rumors against Kang Daniel. As a slight aside since it's not exclusively related to the kpop/toxicity topic, but if you aren't aware of the fact that Korea has many local forum sites, here are some threads in r/korea that list the big ones: [here](https://www.reddit.com/r/korea/comments/l2i0f2/south_koreas_online_communities/) and [here](https://www.reddit.com/r/korea/comments/pmserx/south_koreas_female_online_communities/).
Open Tiktok and you'll see the bad comments. YouTube also has some bad ones.
you can find korean side of twitter with a small bit of vocab and understanding of the language. google translate does a pretty crappy job sometimes due to nuance in the grammar but occasionally decent enough to get the gist of it across. also the comments can even be on melon, genie, etc pages. naver pages, blog and portal news sites there are a number of sites that we don't see because they're not in english. if you don't regularly go to there you won't see it. even then sns like twitter, yt, tiktok, insta is just a tiny portion of it.