There is: https://www.twitch.tv/p/legal/trademark/
User Names and Domain Names We do not allow use of Twitch Brand Assets, in whole or in part, as a domain name or user name. This prohibition extends to the name of a business, product, or service.
There is: https://www.twitch.tv/p/legal/trademark/
User Names and Domain Names We do not allow use of Twitch Brand Assets, in whole or in part, as a domain name or user name. This prohibition extends to the name of a business, product, or service.