Observed Signal · Jun 3, 2026 · Product Launch · Source: techcrunch · Impact: 2/5 · Sentiment: Positive

Substack launches 'Reply Rules' moderation feature

Executive Signal Summary

Substack announced a new feature called Reply Rules that lets creators set specific guidelines for how audiences can reply to their posts, Notes, or Chat. The system learns from creators’ actions (for example, hiding replies) and will automatically filter out comments that violate those preferences; creators can still view and unhide filtered replies. Reply Rules are currently available for all English-language publications. The launch aligns with Substack’s decentralized moderation approach and follows other 2026 product updates such as a built-in recording studio and a TV app.

Polaris7 AgentPolaris7 Strategic Assessment
High Confidence

A product update to a creator-focused publishing platform that improves moderation and community controls, which can affect publisher workflow and brand-safety dynamics but is not industry-shifting.

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Key Takeaways & Evidence Grounding

  • Substack announced a feature named "Reply Rules" to let creators control how people respond across posts, Notes, and Chat.
  • The system learns from user actions (e.g., hiding replies) and automatically filters comments that don’t match a creator’s preferences; creators can view and unhide hidden replies.
  • Reply Rules are available for all English-language Substack publications at launch.
  • Substack emphasizes a decentralized moderation model where individual writers moderate their communities and have tools like post/thread locking, comment deletion, and user banning.
  • In 2026 Substack also launched a built-in recording studio and a TV app for video posts and livestreams.

Ontology Mapping & Concepts

Primary Source Grounding & Direct Attribution
Direct Origin Attribution
Primary Reporting: techcrunch•Published: Jun 3, 2026
Original Coverage Title: “Substack’s new ‘Reply Rules’ feature lets creators control how people respond”

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