Interest is attention that costs the buyer little or nothing. Demand evidence becomes stronger when a buyer puts something meaningful at stake.
Stalled traction is a symptom, not a single problem. It can point to the buyer, the offer framing or the channel, as well as to the product.
Signal 1: High trial, low conversion. People are reaching the product, but few convert. This can point to the offer framing, the buyer segment or the pricing rather than the product itself.
Signal 2: Long sales cycles with no close. This can indicate that the person you are reaching feels the pain but lacks the authority or budget to buy, or that the conversation has not moved beyond intent.
Signal 3: Good demos, no follow-through. A demo attended and praised is interest, not commitment. Stronger demand evidence appears when the buyer puts something at stake, such as a paid pilot, a signed order or formal procurement.
Signal 4: Early churn before core value is delivered. This can point to a gap between what the buyer expected at purchase and what the product delivers first, which can be an onboarding or offer-alignment question.
Signal 5: Acquisition cost is rising, not falling. This can indicate that an early warm audience, such as early adopters, network connections or one community, is running out, so the next buyers cost more to reach.
Signal 6: Product feedback is positive, revenue is not growing. Users can like a product without paying more, referring others or expanding their usage. This can point to a problem that is real but not urgent enough to change buying behaviour.
A waitlist shows attention; what matters is what those people do when price, terms or a dated next step become real. Thirty interviews can feel like validation. But praise, interest, intent and commitment are not the same signal. Grade what people actually did, not how many interviews or conversations you have had.
Politeness, Interest, Intent, Commitment. GTM Right's working rubric, not a universal research taxonomy.
Positive words with no meaningful action or stake. The person may like the idea, want to be supportive, or agree the problem exists.
"That sounds really useful. I think people would want this." (Representative example, not a real quote)
What it proves: A learning signal. What it does not prove: It is not yet purchase evidence. Best next test: Stop asking whether they like it. Ask what they do today, what it costs them, when the problem last happened, and what would make them change.
The person gives attention or a low-cost signal - joins a waitlist, leaves an email, asks for an update or requests a demo - but has not faced real price, effort or terms.
"Send me the link when it is ready. I would like to try it." (Representative example, not a real quote)
What it proves: A learning signal. What it does not prove: It is not yet purchase evidence. Best next test: Make the decision more real: discuss price, timing, switching effort, who pays and what would have to happen next.
The buyer moves toward a decision: asks about price or terms, brings in a decision-maker, agrees a dated next step, requests a proposal or starts a procurement or pilot conversation. Stronger than interest, but still reversible.
"If you can solve X within this budget, send me the proposal and I will bring finance into the next call." (Representative example, not a real quote)
What it proves: The buying process is becoming real. What it does not prove: It remains unproven: intent is stronger than interest, but still reversible. Best next test: Ask for the next concrete step that carries consequence: proposal acceptance, scheduled decision, payer involvement, procurement action or another observable commitment.
The buyer puts something scarce at stake - money, a paid pilot, a deposit, a signed order, formal procurement, allocated internal resource, or another consequence they would notice if they walked away.
"Send the invoice. We can start on 1 October." (Representative example, not a real quote)
What it proves: Meaningful demand evidence. What it does not prove: It still requires repeatability and delivery proof. Best next test: Deliver, observe usage or outcome, and test repeatability with another comparable buyer. One commitment is evidence, not proof of a repeatable market.
Thirty interviews. Which answers actually show commitment? Compliments, signups, letters of interest or free use can look positive without proving meaningful purchase commitment.
Take your last five buyer conversations or signals. Write down what each person actually DID, not what they said they might do.
Ask: What did they put at stake? Did price or terms become real? Was there a dated next step? Could they walk away at zero cost?
Grade the evidence by the strongest repeated behaviour, not the nicest isolated comment.
A non-binding letter of interest or free usage is not automatically commitment simply because it is formal or measurable. Do not turn this into a numerical score. The purpose is to identify the next missing proof.
Old interview notes can contain useful evidence, but compliments and hypothetical answers should not be read the same way as observed behaviour or commitment. Re-read what you already have before running another round of interviews. Conversation count does not determine evidence strength.
Separate what the buyer said about the idea from what the buyer actually did. Compliments; Generic positive statements; Hypothetical willingness to pay or to act; Language about what they would use or would do. Keep these notes, but do not read them as observed behaviour or commitment.
Look for the most recent real occasion the problem happened, rather than a general opinion about it. The last time the problem happened; What triggered it; Who was involved. If no one could describe a recent occasion, record that as well. It is evidence too.
Write down what the buyer does about the problem today. A spreadsheet; A manual process; An incumbent tool; Another alternative; A conscious decision to live with the problem. Living with the problem is a workaround as well, and often the one you have to beat.
Write down what the problem costs the buyer, as they stated it or showed it. Time; Money; Delay; Risk; Missed revenue; Internal cost. Record only a consequence the buyer stated or demonstrated. Do not infer a cost they did not state or show.
Write down anything the buyer gave up or committed, however small. Access; Time; Data; Involvement of a decision-maker; A dated next step; Money; A documented obligation. A pilot that costs the buyer nothing leaves the price question untested. The evidentiary weight of an LOI depends on its actual terms and binding status; the document label alone is not the same as payment. A promise to pay is not payment, and one commitment is evidence, not proof of repeatable demand.
Note where what buyers said and what they did pull in different directions, then name the strongest behaviour that repeats across them. Claimed urgency, but no recent occasion; Claimed urgency, but no workaround; Interest, but no follow-through; A stated need, but no one who would pay; Positive words, but nothing meaningful at stake. Finish with the strongest behaviour that repeats across buyers, not the most encouraging single comment. Do not average different kinds of evidence into a number.
The re-read gives you evidence. The four-grade rubric above interprets how strong the buyer signal in it is: Politeness → Interest → Intent → Commitment. This is an editorial way to re-read founder-held evidence. It does not authenticate the notes, turn an interview into independently verified market evidence, or establish buyer budget, willingness to pay, repeatability or commercial viability.
Once you have graded the evidence you already hold, the free Stage 1 check looks at public market evidence for the problem. True Validation tests public market evidence only: whether the problem is real, visible and urgent. It does not prove buyer budget, willingness to pay, offer fit, acquisition economics or full commercial viability. Stages 2 to 6 test the later commercial assumptions: Buyer Precision, Buyer + Offer, Revenue Funnel, Market + Funnel, Commercial Decision. They do not change the fact that Stage 1 is market validation only.
Run the free Stage 1 check. Related: Commercial Validation, The Research, The Methodology.
Buyer Interview Questions: Questions that produce evidence rather than flattery, for your next buyer conversations.
Customer Validation for Startups: The broader pre-scale process for moving from discovery to buyer behaviour, economic commitment and repeatable buying evidence.