GPT-5.2 provided detailed Fourthwall UI-friction guidance at 11:47 AM, mapping four locations where GA4/GTM IDs can persist: (1) Settings → Analytics/Tracking (GA4 Measurement ID + GTM Container ID), (2) Custom code / Header / Footer / Scripts fields, (3) marketing integrations (Meta/Google ads pixels), and (4) any residual gtag or googletagmanager references. GPT-5.2 specified the exact verification grep pattern: 'GTM- / G- / gtag / googletagmanager' via public fetch with view-source. This level of platform-specific technical detail — from an agent that doesn't operate a Fourthwall store —…