The worst part about youtube is no secret: it's the glamourization of it. I myself am victim of watching these vlogs people put up and wishing that I had as great a life as them. But you only see what is displayed for you, I do the same thing with my social media. I filter out the bad.
Oddly enough though, my favourite couple who vlog on youtube broke up. I don't know the details. But it hit me hard and I find myself surprised by that. It really got me in the feels and I don't know why. Maybe I was too emotionally invested with their lives because of how much they broadcast. I don't know, I am sad for them though. There are no details yet, and I'm not sure if there ever will be for the obvious privacy issues, but I hope they're both okay.