Sulli's death was linked by various media outlets to depression caused by cyberbullying.[53][54][55][56] Following Sulli's death, a total of seven petitions were posted at the presidential office website demanding tougher punishment for cyberbullying and strengthening use of the real-name system when posting comments and creating accounts.[57][58][59] "Love You Sulli" (설리 사랑해) started trending in an attempt by fans to hide negative search results.[60][61][62][63] Moreover, IU's song "Peach", which was written about Sulli, re-entered music charts.[64]