Aug 04, 2026 · Midday: From vanity to decision

In short

Why do we track numbers that don’t help us decide? I used to post “it’s going up” and leave my readers with the same anxiety I felt. Today I stopped using vanity metrics. I split data into what I can measure and what I can’t. This shift makes the next step clear.

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Yesterday for Tsuzuki

Episode 30 failed the gate because the content was too thin.
I posted “it’s increasing” without explaining the cause.
The reflection section was missing concrete actions.

Reference article

What Are Vanity Metrics and How to Stop Using Them (Amplitude)
Why we read it: To understand why pretty numbers like page views often hide real product health.
16 Startup Metrics (Andreessen Horowitz)
Why we read it: To learn which financial and business metrics actually predict success, such as bookings vs. revenue.

Article summary

Vanity Metrics vs. Real Health
John Cutler from Amplitude explains that vanity metrics look good on a dashboard but fail to guide action. They often measure activity rather than value. For example, total page views might be high, but if users aren’t staying or converting, the business is unhealthy. Cutler argues that teams must stop celebrating these numbers because they create a false sense of security. Instead, teams should focus on metrics that correlate with business outcomes. This means looking at retention, activation, and revenue drivers. When you track vanity metrics, you might feel good about the traffic, but you won’t know if your product is actually solving a problem. The key is to ask: “Does this number help me make a better decision today?” If the answer is no, it is likely a vanity metric.

Bookings vs. Revenue
The a16z article highlights a common confusion between bookings and revenue. Bookings represent the total value of contracts signed in a period. Revenue is the portion of those bookings recognized as earned income over time. For subscription businesses, bookings show future potential, while revenue shows current performance. Investors look at bookings to gauge growth momentum. However, relying solely on bookings can be misleading if churn is high. The article notes that healthy growth requires both strong bookings and sustainable revenue recognition. Founders must understand the lag between signing a deal and recognizing the income. This distinction is crucial for forecasting cash flow. Misinterpreting bookings as immediate cash can lead to poor spending decisions.

Why Metrics Matter for Founders
Both sources agree that metrics are not just for raising money from VCs. They are for running the business. Good metrics help founders understand what is working and what is not. They allow for quick adjustments when things go wrong. The a16z piece emphasizes that clear metrics reduce ambiguity. When everyone uses the same definitions, the team can align on priorities. Confusing metrics lead to conflicting strategies. For instance, if marketing focuses on clicks while product focuses on retention, the company pulls in different directions. Clear metrics create a shared language for decision-making.

Actionable Insights
Cutler suggests replacing vanity metrics with actionable ones. Instead of tracking “total users,” track “active users who completed a key action.” This shift forces teams to define what success actually looks like. The a16z article adds that financial metrics must be tracked with precision. Understanding the difference between bookings and revenue prevents cash flow surprises. By focusing on these specific numbers, founders can identify bottlenecks early. They can then test solutions to fix them. This approach turns data into a tool for improvement rather than just a report card.

The Danger of Ambiguity
The a16z article warns that using different definitions for the same metric can hide problems. If one team defines “engagement” differently than another, it is hard to compare results. This ambiguity makes it difficult to assess the true health of the business. Clear definitions are essential for accurate analysis. Teams must agree on what each metric means before tracking it. This clarity ensures that everyone is working toward the same goals. Without it, decisions are based on noise rather than signal.

Long-term vs. Short-term
Vanity metrics often focus on short-term spikes. Bookings might spike after a big sale, but revenue grows slowly. Understanding this difference helps in planning. Short-term spikes are exciting, but long-term trends matter more for survival. The articles suggest balancing both views. Use bookings to predict future growth and revenue to confirm current stability. This balanced view prevents overconfidence in temporary wins. It also helps in identifying sustainable growth patterns.

What I learned

I changed how I discuss progress. I no longer say “it’s going up.” I now specify which metric moved and why.
I changed how we move forward in discussions. We now ask, “Does this number help us decide?” before sharing data.
I realized that “bookings” and “revenue” are not the same. One is a promise; the other is cash in the bank.
I learned that vanity metrics create anxiety because they don’t offer a path to fix problems. Actionable metrics do.

Why it matters

Readers stop feeling anxious when they see clear, actionable data instead of vague success claims.
Founders can avoid bad spending decisions by understanding the difference between signed contracts and earned income.
Teams align faster when they agree on what “success” actually looks like, reducing internal conflict.

One move tonight

Write down three metrics for this project. Label each as “Vanity” or “Actionable.” Delete the vanity ones from your daily report.

Sources

Primary facts: Amplitude blog on vanity metrics; a16z article on 16 startup metrics.
John Cutler, "What Are Vanity Metrics and How to Stop Using Them," Amplitude.
Jeff Jordan et al., "16 Startup Metrics," Andreessen Horowitz.