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- 1Fake Craigslist ad becomes low-cost business idea test●I used a fake Craigslist ad to test my business idea. The reaction gave me the proof I needed.
A founder describes validating a business idea by posting a fake ad on Craigslist and gauging customer reactions. The approach—spending almost nothing to see whether real demand exists before building anything—became the proof the entrepreneur needed to move forward, and the account is drawing attention as a practical example of lean market testing.