A founder showed me his metrics dashboard last week. Everything looked green: 150% NRR, 8-month payback, 25% month-over-month growth.
Then I asked one question: “How many of those customers came through your co-founder’s personal network?”
The answer: 67%.
His metrics weren’t wrong. They just weren’t predictive. VCs saw what he couldn’t — that his growth engine was a one-time asset (personal relationships) being mistaken for a repeatable system (scalable GTM).
The metrics that lie most often:
1. NRR with small denominators. 150% NRR sounds impressive until you realize it’s based on 12 customers. One churned whale or one expansion outlier can swing this number 30 points. VCs discount NRR claims until you have 50+ accounts with 12+ months of history.
2. Growth rate during founder selling. Founders close deals differently than sales reps. They have context, relationships, and desperation that hired salespeople don’t. Your 30% MoM growth while founder-led may become 10% MoM post-sales hire.
3. CAC without attribution. If you can’t tell me which dollars produced which customers, your CAC is a guess. I’ve seen founders claim $500 CAC when their actual blended cost (including founder time, content, events) was closer to $3,000.
4. Payback period excluding implementation. An 8-month payback becomes 14 months when you add the 6 months of onboarding and CSM time required to get customers to value.
Investors don't distrust your metrics because they think you're lying. They distrust them because they've seen how metrics behave when scaling pressure arrives. Show them you understand the fragility in your own numbers.
What to do instead:
Present metrics with their constraints. “Our NRR is 150%, but I want to flag that this is based on 18 customers and includes one outlier expansion that added $80K. Excluding that, we’re at 125%.”
This builds trust. Investors know you’re not naive. And it preempts the awkward moment in diligence when they find the same thing and wonder what else you’re hiding.