Revelations about disturbing messages sent by students at an elite Sydney school have reignited debate about parents' responsibility for their teenagers' online behaviour.
Knox Grammar School, on the city's north shore, informed parents that some students had been counselled, suspended or were "leaving the school" over the "unacceptable" posts on messaging service Discord, which had been referred to the police.
"The boys posted inappropriate images and engaged in offensive commentary in a private online chatroom," said a letter to parents, signed by headmaster Scott James.
