https://www.theguardian.com/technology/2018/sep/08/youtube-stars-burnout-fun-bleak-stressed
“Human brains really aren’t designed to be interacting with hundreds of people every day,” he says. “When you’ve got thousands of people giving you direct feedback on your work, you really get the sense that something in your mind just snaps. We just aren’t built to handle empathy and sympathy on that scale.” Lees developed a thyroid problem, and began to experience more frequent and persistent stretches of depression. “What started out as being the most fun job imaginable quickly slid into something that felt deeply bleak and lonely,” he says.