I'm definitely in the weird minority that feels like that phase of edgy internet counterculture diving was an overwhelming positive thing for me. It gave me perspective as a sheltered suburb kid as to how fucked up things can be in the world. I feel I have a lot more empathy now whereas before I struggled to internalize the problems and suffering of people around me as "real" (things like war or crime were things that happened on television and in fictional novels, not in real life). Even now I feel like some people, especially in my parents' generation, have trouble seriously understanding the lives of people outside their immediate ingroups.

I would not recommend it as a method for anybody though, there are a dozen other routes that kind of journey could have gone down and most of them lead to terrible conclusions.