> It's infuriating when friends/neighbors came to me with devices they acquired in good faith
If you don’t have the activation lock removed, you’re not the second-hand owner, you’re more than likely in possession of stolen property which has been dumped in your hands.
A stolen device doesn’t become ethically cleansed because someone bought it off the criminal “in good faith.” It’s still stolen goods.
All serious recycling services pay money for phones. Every single one I know of pays almost nothing if the device is activation locked, so it’s in the interest of the seller to deactivate it.