Hey, {{first_name | Founder}}!
A paid customer interview is often the most expensive false positive in a founder validation process.
It is tempting to offer $100 to get a target buyer on the phone. You run a discovery script, they agree the problem exists, and you leave feeling confident you have demand. But paying someone to talk only proves that you can buy their attention. It does not prove urgency, budget, channel fit, or a willingness to buy the product.
If cash gets them in the room, the incentive changes why they show up.
Paid research is not useless. It works when your only goal is to learn their vocabulary, map their daily workflows, and surface their objections. It becomes dangerous fake progress when you treat their attendance as commercial validation.
Customer discovery is not demand.
To test actual demand, stop offering compensation and use a narrower script: "I am testing whether teams like yours have this workflow problem. If yes, I can show a prototype and discuss whether a pilot makes sense."
Signal quality depends on what behavior follows the conversation. An unpaid interview with a consistent ICP proves pain. A cold reply proves channel signal. A demo request proves intent. But commercial validation requires buyer commitment: a fake-door payment attempt, a signed pilot, or charging people who already say they are willing to pay.
You need buyer behavior, not just respondent participation.
