hater
noun [ C ] informal uk/ˈheɪ.tər/ us/ˈheɪ.t̬ɚ/
（尤指在网络上）攻击（或辱骂）他人的人
a person who says or writes unpleasant things about someone or criticizes their achievements, especially on the internet
Forget the haters - they're just jealous. 不要管那些只会骂人的人，他们不过是嫉妒而已。