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Growth idea action plan

Competitor marketplace cross-posting hijack

Build functionality that lets your users automatically repost their listings to a larger incumbent platform, funneling that platform's traffic back to you.

legendary tacticfree budget

Why this can grow a startup

Airbnb reverse-engineered a way for hosts to replicate their listings onto Craigslist, which had 42 million monthly users at the time. Craigslist users who clicked on these listings were redirected to Airbnb, converting them into new users. Guest arrivals grew from 20,000 to 3 million per year between 2009 and 2012. The hack worked because Airbnb offered a superior user experience once visitors arrived.

Company example

Airbnb (cross-posted listings to Craigslist)

Source and metric

Source: targetinternet.com

Source discovered: March 24, 2026

CommunitiesPartnerships0-100100-1K
GrowthDex operator note

When to use it

Use this when Communities, Partnerships is relevant to 0-100, 100-1K 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

  1. Read targetinternet.com and identify what is directly supported.
  2. Choose one channel context: Communities, Partnerships.
  3. Define the test around one observable customer behavior.
  4. Set an owner, evidence window, and stop condition before launch.

Explore the context

Advisory bridge

Apply this with an operator

Choose product surfaces that compound distribution without hiding weak activation or retention.

Work with Ian