I would not want that job for the world.
YouTube had an office in the Philippines that employed people to do nothing but remove objectionable videos. Beheadings, rape, murder, child porn, that's all they watched all day, every day.
I was involved in an IT Security forensics case against a corporate executive years back. The things I saw are permanently seared into my memory. The bastard deserved every minute of incarceration he got.
I would say it's affected me adversely, but I wouldn't go so far as to say I have PTSD from it; and I'm sure not going to sue my former employer over it. It was my job. I was paid to deal with exactly that sort of stuff.