That seems to support the point you replied to. You point to a group of people who opted out of monitoring and exhibited risky driving behavior, leaving leaving lower risk people in the monitored group
In the book he interviews several people who do almost nothing all day. That was my takeaway when I read it. It's not about jobs where the employee does not see their work as valuable to the organization.
I know of one long-running message board site which is free of advertising and free for users. A number of users make regular donations and occasionally when funds are low they make an announcement and some other users make a one-off donation.
I am very doubtful their model would scale to Reddit's size, and certain they don't have any wish to.
I know it seems like it wouldn't scale merely because we haven't seen it happen, but I don't think it's economically impossible or even economically difficult. I don't think there's any reason to believe that your costs go up more quickly than your income from donations/ads. Instead, I think what happens is you just don't get many users in the first place because all their attention ends up acquired by people willing to operate non-sustainable businesses with the aim of extracting value in the future.
If by some crazy fluke there weren't any highly motivated money-brains in the social media space, I'm absolutely certain a sustainable non-profit open source solution would exist in place of reddit and facebook, and it would eventually accumulate nearly as many users as those sites have. Maybe not as quickly, and maybe while throwing up donations banners at the same rate as Wikipedia, but it would happen. But you need to get impossibly lucky for the entrepreneurs to ignore "the space" when you have 100k users, and by 1 million users the scent of "alpha" has drawn so many of the biggest, meanest, smartest of the bunch that you need to be an absolute juggernaut of momentum and name recognition (like craigslist and Wikipedia) to have any hope of competeing.
The one I have in mind has been going for decades. I don't think they ever wanted to scale up. The place feels like an independent bar that the owner has no interest in turning into a chain, he just likes running that one bar.
With emphasis on "regularly," I think you're right. Medical staff have joined the ranks of welders, carpenters, fire fighters, and many others who regularly wear N95s for their jobs.
That's the grandparent, but he is talking to the parent and he is right to point out the error in the parent's post. It's a bit strange to think the parent would believe that masks are new to healthcare, consider the most plausible interpretation instead.
Black African Americans seem to have that predisposition, but not all Black populations do. There is a theory that ability to retain salt improved your odds of surviving a slave ship journey.
Thanks for specifying which c word you meant, as the only one in the post you replied to was Chinese.