DIY-platform launch / completion rate — no independent, survivorship-corrected figure exists

Claim: No independent dataset cleanly reports "share of started DIY sites that ever go public." The only available evidence is indirect (vendor user/subscriber counts — Wix end-2025 — 304M registered users, 6.11M premium subscriptions (~2% paid conversion); ~8–8.5M live sites (BuiltWith)) plus Wix's qualitative admission that "many users never publish a website" (Wix Form F-1 (SEC, March 20 2014) — verbatim admission that many registered users never publish a website).

Source: Survey of the literature (gap).

Confidence: This is a documented gap, not a finding.

Why this matters for Candid: When a brief or article needs to talk about launch/completion, the honest move is to state "no reliable independent data exists" and cite the Wix admission + paid-conversion proxy. See R5 — Thresholds that would change the assessment — name the gaps so they can be filled.