I agree that people were probably lying in aggregate. What I'm saying is that it's the type of lie that you can't know is a lie based on one person not having

I agree that people were probably lying in aggregate. What I'm saying is that it's the type of lie that you can't know is a lie based on one person not having their webcam work. It's like saying people who take 10 sick days a year are lying, because I've never taken more than 3 sick days. Of course, some people take sick days when they're not sick. But if, say, your employees in their 30s take twice as many sick days as employees in their 60s, it might be because people in their 30s are more inclined to "lie" about it (or use sick days for things besides being sick)