Users own and monetize declared preference profiles for trusted brand access

Marketers and brands are losing deterministic third‑party signals (cookies, ATT) while consumers increasingly distrust opaque tracking, leaving advertisers with fragmented audiences, poorer targeting and rising acquisition costs. The addressable opportunity is large — of the roughly $450 billion global digital ad spend, about 55% (≈$250 billion) could be activated through consented, first‑party channels driven by declared preferences. You could build a user‑owned preference profile platform where consumers create verifiable, machine‑readable preference and intent profiles, grant scoped, time‑limited access to trusted brands, and receive direct compensation or premium access in return. The product would combine a consumer UX for declaration and monetization, an issuer/verification layer for quality (attestations, reputation), and a marketer-facing API/activation marketplace with payment rails and analytics; monetization comes from marketplace take rates, subscription tiers for brands, and premium profile services. Key challenges are seeding both consumer supply and brand demand, ensuring interoperability with CDPs and ad tech stacks, and simplifying compliance across jurisdictions. This is an attractive moment because privacy regulation and the industry’s first‑party pivot create immediate demand — market indicators are strong (Market Score 92/100; Revenue Potential 88/100) and consumer expectations for tokenized value exchange are rising. To stand out you must deliver verifiable preference quality, low‑friction consent flows and partnership anchors (pilot brands or platforms) to prove lift and reduce activation friction; the biggest risks are network effects, onboarding inertia, and the need to demonstrate clear short‑term ROI to paying brands.