Show HN early-morning seeded engagement launch
Post a Show HN on Tuesday through Thursday between 7-9 AM EST and have 5-10 real supporters upvote and leave genuine comments in the first hour to escape the new page and reach the front page where organic traffic takes over.
Why this can grow a startup
Hacker News ranks posts by early engagement velocity. A small cluster of authentic upvotes and comments in the first 60 minutes pushes the post off the new page and onto the front page, where thousands of technically-minded early adopters browse daily. Once on the front page, organic traffic compounds because HN readers tend to share interesting Show HN posts on X, Reddit, and Slack. The cost is zero and the audience quality is exceptionally high for developer and B2B SaaS tools.
Source guidance
Reddit founder (r/SaaS, March 2026) documented getting 500 first users with this exact playbook; separately, a YC-backed startup (Indie Hackers, 2026) reported that half of its 8,000-person waitlist came from a single Hacker News post, vastly outperforming YC reposts and other channels.
Source details
Source: reddit.com · Browse reddit.com tactics
Evidence scope: claims and metrics are attributed to the linked source; GrowthDex has not independently replicated the reported result. Check the original context and validate fit before applying it. Read the evidence methodology.
Source discovered: March 23, 2026
When to use it
Use this when Communities, Hacker News is relevant to pre-launch 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.
How to do it
- Choose one target segment and define the exact next action this tactic should prompt.
- Follow Hacker News community guidelines: do not solicit votes, comments, or submissions; share a useful working demo and an original explanation.
- Record a baseline for: Qualified Show HN visitors who complete the intended first product action. Set a guardrail that would make you pause the test.
- Run a narrow pilot and choose a test window that fits the normal decision or use cycle; do not scale before you have observed the full cycle.
- Compare the signal with its baseline. Scale only if the intended action improves without crossing the guardrail; otherwise revise one variable or stop and record what you learned.
Compare a stack for your situation
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