I actually used to watch this content.
At first around 5th grade when 'rotten.com' was still up and popular. I then drifted off to the 'pain olympics' (please don't look it up if it's still accessible, lot's of gore, ISIS beheadings, also animal cruelty
). I never set foot on WatchPeopleDie.tv but I've been on the subreddit before it became a website. And various subreddits regarding autopsy, death reports, etc. And since Reddit did their 3rd party app stunt I've completely detached from any kind of social media and also haven't seen any of that content again.
It must've been a mix between morbid curiosity and despair? Any way to make my own thoughts go away. But I'd never disrespect these poor souls in these videos, yet I've watched some of those videos.
And in the last few years I've seen my share of intentional and unintentional suicides close-up. I'm good I think.