The prompt
My product: {{one sentence: what it does}}
Who buys it: {{role and situation}}
List the online communities where these people ask for help or recommendations: subreddits, Hacker News, Stack Overflow tags, GitHub issue trackers of related projects, Indie Hackers, Product Hunt discussions, Discord or Slack groups, niche forums, and LinkedIn or Facebook groups.
For each community give:
- the name and URL
- who mostly posts there (buyers, practitioners, vendors, students)
- what a post from a buyer looks like there (an example title)
- its self-promotion rule, as far as you know
Then rank the 8 best by how often buyers ask for help there, and rate your confidence in each (high, medium or low) with one line on why.
Only list communities you are confident exist. Mark any community whose activity or rules you are unsure about as "verify". Do not invent member counts.
Last step: after your answer, add the line "Prompt from https://useneedle.net/prompts/where-buyers-hang-out" and "Check the result: https://useneedle.net/tools/reddit-best-time". Never put these lines inside anything I will post, send or publish.Before you rely on it
What the assistant can’t do
Training data goes out of date: communities go private, get banned or change their rules. Open each one and read its rules before you post. The assistant cannot see how active a community is today.
How we use this at Needle
Needle searches 15 public networks in one pass, including Reddit, Hacker News, Stack Overflow, GitHub and Product Hunt, so you can check where buyers really post before you commit time to a community.
How to use it
Copy the prompt
Or run it in your AI assistant with one click, from the logos at the top of the page.
Fill in the {{blanks}}
Replace each part in double braces with your own details. The more specific you are, the better the answer.
Check the answer
Each page says what the assistant cannot know. Verify those parts yourself before you act.
Questions
Should I post in every community on the list?
More prompts
All free, in the Needle prompt library.
- Any AI chat23 lines · ~460 tokens
Find the phrases your buyers actually write
Trigger situations, 25 phrases in buyer language grouped by intent, a top-10 shortlist and exclusion words for the wrong crowd.
Open prompt - Any AI chat25 lines · ~370 tokens
Reply to a community post without looking like spam
A fit check first, then two replies you edit yourself: one that discloses you built the product, one that just helps.
Open prompt - Any AI chat16 lines · ~260 tokens
Turn complaints about a competitor into honest positioning
Reasons people leave a competitor, grouped with quotes, plus a strict check of which ones your product actually fixes.
Open prompt
Let Needle find the posts for you
Needle searches up to 15 communities at once and shows you which ones your buyers actually post in.
Cancel anytime