On April 21, 2015, Yang Youying committed suicide due to long-term online bullying , anonymous slander , harassment , and unequal treatment from the staff of "College Students Are Away" ; on the same day, the social networking site Twitter issued a statement to resist abuse. policy, and revise the definition of "violent threatening speech" to prevent the growing trend of online bullying. However, Facebook, which caused the problem, still adopts a laissez-faire policy towards bullying, often mistakenly restricting free speech, restricting and removing speech that has nothing to do with bullying and discrimination, and turning a blind eye to real bullying and discriminatory speech.