user group
noun [ C ] internet & telecoms specialized uk/ˈjuː.zə ˌɡruːp/ us/ˈjuː.zɚ ˌɡruːp/
（信息技术产品的）用户群体;用户团体
a group of people who are interested in a particular area of computer science or use the same product and who use the internet to share information about it