Your most loyal users subscribed to the Ultimate membership can help you moderate your room in order to keep it an offense-free and friendly space. For that, you just need to designate them your Knights.
This post entails the ability to mute any user (regardless of league and level) who is being rude or offensive in the chat for the next 24 hours.
It is a great responsibility so make sure you choose your Knights wisely.
To turn an Ultimate user into a Knight, hover over their username in your chat room and in the popped-up user card you will see a shield icon next to their name. Click on it and this user will immediately become a Knight and appear in your Knights section in your profile.