- During streaming:
If you want someone to help you control the chat (ban people) while streaming, and you could find his comment on chat, then you could tap his/her username, there’re some options pop up:
Mute(ban): He/She can’t send you any comments/messages
Moderate：He/She could ban anyone on your chat
- On messages:
When you open someone’s profile page, and tap the message icon, you could contact him/her via direct message. Look at right corner, you’ll find 3 points, click it the options will pop up too, similar options as chatroom.
Attention: Moderate someone you trust, otherwise he/she may mute all you viewers.
You could also unban/unmoderate with the same ways. There's a third way to relieve muted users or moderators.
Please open your profile page, and find the "gear" icon near "Edit profile" button:
Then you can find the muted/moderators list, you could urban/unmoderated there.