Similar-topic warning before new support thread
Use the composer’s similar-topic warning so users see likely answers before they create another near-duplicate support thread.
Why this can grow a startup
Duplicate support topics do not only waste moderator time. They also split search equity and force future readers to pick between several half-overlapping answers. Discourse surfaces similar topics while someone is composing a new thread, with settings for title length and how much existing topic volume is needed before suggestions appear. That small interruption can save a forum from steady answer fragmentation. It is one of the cheapest ways to protect both support bandwidth and the public answer archive.
Company example
Discourse documents a composer message that warns users when a new topic looks similar to existing topics and shows possible matches before posting.
Source and metric
Source: Discourse Meta: Composer Popup Messages Guide
The similar-topics composer message is controlled by settings for minimum title length and minimum existing topic count.
Source discovered: May 29, 2026
When to use it
Use this when Support, SEO, Community is relevant to duplicate prevention, forum seo, support deflection and you can run a bounded test with a free budget.
When not to use it
Do not use it as a substitute for customer evidence, a clear owner, or a measurable stop condition. Local platform rules and market behavior still need checking.
Founder checklist
- Read Discourse Meta: Composer Popup Messages Guide and identify what is directly supported.
- Choose one channel context: Support, SEO, Community.
- Define the test around The similar-topics composer message is controlled by settings for minimum title length and minimum existing topic count..
- Set an owner, evidence window, and stop condition before launch.
Explore the context
Apply this with an operator
Turn isolated search tactics into a crawlable visibility system tied to demand and proof.