Fans stood up and took action.
On June 10, several internet community boards posted photos of malicious graffiti found all over Gangnam, Seoul, targeting singer BoA.
According to the released photos, graffiti was found on public facilities around the Gangnam area, such as utility poles, bus stops, and voltage converters.

There is graffiti at the bus stop outside of Gangnam Station exit 12.

Graffiti next to the Baskin-Robbins Gangnam-daero branch. (Someone has reported it to Kwangya and the electricity company, and although it will take a few days, they said they will erase it.
Many posts were also seen online of people reporting seeing the graffiti in various places.

“Title: The poles for billboards on the way from Gangnam Station to Sinnonhyeon Station.
There is many curse words written about BoA on a lot of the poles…shocking…isn’t this property damage?”

“Title: There are a lot of vulgar curse words about BoA on the streets of Yeoksam. Where do I report this? Kwangya 119?
I think a psychopath wrote all this.”
글씨체 보면 동일인물 같은데
이건 연예인 1명에 대한 모욕죄만 해당되는 게 아니라 국가기물 훼손까지 추가다
지옥 끝까지 따라가줄게 정신병자 악플러야— BoA 악플 수집용 (@account_x_sco) June 10, 2025
Looking at the handwriting, it seems like the same person did it. This is not just an insult to a single celebrity, but also causes damage to national property. I will follow you to the ends of hell, you psychopathic troll.
Damaging the city’s appearance and a specific artist drew public anger.
In response, her fans took immediate action and voluntarily went around erasing and cleaning up the graffiti.
제가 어제 강남역에서 신논현역 사이에있는 미디어폴에 적힌거는 다 지웠고 미디어폴에 낙서도 사이버범죄수사대에서 받는다하여 제보했습니다
버정하고 베라앞은 제가 못보고 왔네요 ㅠ https://t.co/bGJqZwgZIp pic.twitter.com/ujfKw7CerO— BoAJoA 보아조아 (@_BoAJoA_) June 10, 2025
I erased everything between Gangnam Station and Sinnonhyeon Station. I also reported the graffiti on the media pole to the cybercrime investigation unit. I couldn’t see the ones at the bus stop or the Baskin-Robbins, however.
Fans are also continuously reporting these actions to facility officials, cybercrime investigation units, and SM Entertainment.