Twitch holds creators, both Affiliates and Partners, responsible for all activity on their channel.

This statement is true. Twitch's Terms of Service and Community Guidelines clearly state that channel owners are responsible for all content and conduct that occurs on their channel, regardless of who is streaming or posting. This includes content from guest streamers, moderators, or even viewers interacting in chat. Channel owners are expected to actively manage and moderate their channels to ensure compliance with Twitch's policies. Failure to do so can result in penalties, including warnings, suspensions, or even permanent bans for the channel owner.