A steadily climbing signup count feels like progress, and in the earliest stage of a product, it often measures something closer to curiosity than actual value delivered. Teams that treat this number as evidence of fit tend to be surprised, later, when it fails to translate into retention, revenue, or genuine advocacy.
Why signups are a weak early signal
Signing up for a product typically requires almost no commitment — an email address, a few seconds of attention, occasionally a free trial. This low barrier means the number captures a huge range of intent, from someone genuinely searching for a solution to a problem to someone who clicked a link out of mild curiosity and never opened the product again. Early-stage teams that watch this number climb often mistake broad, shallow interest for the narrower, deeper signal that actually indicates fit.
What a more honest early metric looks like
Retention after a real gap — coming back a second time a week later, not just finishing an initial onboarding flow — tends to say considerably more than the initial signup number, because it requires someone to have decided, independently and without prompting, that the product was worth returning to. This number is almost always smaller and less flattering than signups, which is part of why teams gravitate toward reporting the larger number instead, even when it tells them less.
Qualitative signals matter here too, arguably more than any single number. A handful of users who would be genuinely upset if the product disappeared tomorrow is a stronger early indicator of fit than a much larger group who would shrug and move on. This kind of intensity is hard to quantify cleanly, which is exactly why it gets undervalued relative to a clean, trackable number like signups.
What this means for how early progress gets reported
Teams that build the habit of reporting retention and genuine user intensity alongside, or instead of, top-line signup counts tend to make more honest decisions about whether fit actually exists yet. It is a less flattering way to track progress in the short term, and it is a far more reliable way to avoid mistaking early curiosity for a signal that is not actually there.
