Seriously, who needs to record someone without the knowledge of the person being recorded? That’s a big red flag, a perverted character, there’s no other explanation. Creepy Mark Zuckerberg allowed other creepy characters to share personal moments with him.
The glasses do have a light when recording. You have to do a hardware mod where you open it up break the light then put expoxy over the slot to remove it.
Most of the users are girls, mums/dads, influences who want to take videos from their POV. I’ve seen people posting videos playing with their kids and saying they like it because it lets them save the moment but still have two hands free to interact with their kid. I’ve seen youtubers do day in the life videos where they record it with the glasses.