Twitch deployed Harmful Chatter Detection, a machine learning feature rolled out in August 2024 that flags both potential ban evaders and potential harassers in a channel before they post. The feature extends the earlier Suspicious User Detection tool and surfaces flagged users to channel moderators for review.

Twitch announced Harmful Chatter Detection on August 6, 2024 via @TwitchSupport on X (formerly Twitter). Twitch stated: "Using machine learning, the new Harmful Chatter Detection setting will help flag both potential ban evaders and potential harassers in your channel so you can keep an eye on them and protect your community." The feature builds on the earlier Suspicious User Detection tool, which was limited to ban evasion, by adding proactive harasser identification as a second detection category.