Substack’s new ‘Reply Rules’ feature lets creators control how people respond

Key points

• Substack announced on Wednesday a new feature called “Reply Rules,” designed to give creators greater control over how their audiences are able to respond.
• With the feature, creators can establish specific guidelines for comments on their posts, in Notes, or in Chat.
• These guidelines might include requests to eliminate AI slop or profanity, or something silly like only requiring replies in haiku form.
• Substack explains that the system learns from users’ actions, such as when they hide replies, and will automatically filter out comments that don’t match the creator’s preferences.
• Creators maintain visibility over these hidden replies and have the option to unhide them if they change their minds.