As a snapchat user/owner of specs 1. Kind of/yes. They had campaigns at certain times. 2. Low 3. idk 4. Yes, they did. It would say "taken with spectacles" and

As a snapchat user/owner of specs 1. Kind of/yes. They had campaigns at certain times. 2. Low 3. idk 4. Yes, they did. It would say "taken with spectacles" and the format kind of advertized/demonstrated the product 5. No one I know besides me bought one. The problem is no one cares about snapchat that much. The average user isn't taking it so seriously that they want to spend money on hardware like this, let alone charge it, set it up, take it around with them etc. If snapchat charged $0.10 to continue using it half their userbase might just uninstall.