netiquette
noun [ U ] internet & telecoms specialized uk/ˈnet.ɪ.ket/ us/ˈnet̬.ɪ.ket/
网络礼仪，网上行为规范
the set of rules about behaviour that is acceptable on the internet
It's considered bad netiquette to use capital letters in an email because it looks like YOU ARE SHOUTING. 在电子邮件中使用大写字母被认为是不符合规范的，因为这样看起来像是在吼叫。