Befriend and talk directly to people who use or service particular items for a living. They have first-hand experience and went through different models. They k

Befriend and talk directly to people who use or service particular items for a living. They have first-hand experience and went through different models. They know their quirks, tradeoffs, workarounds. It doesn't scale and that's the point. If someone has a scalable audience, the incentives change.