Wow, I'm quite shocked that reddit allows so much extreme violent content.. It's readily accessible, even advertised as subreddits, and there aren't any warnings or self-help resources. If people get into that stuff, which is readily addictive, I would think it has significant potential for psychological harm, especially for teenagers. One can argue that it's possible to compartmentalize it, but I doubt it since the mind/brain is a single highly integrated system..

Research seems to be mixed, and unfortunately I don't have time to study it in depth, but there are many articles like this: https://www.abc.net.au/religion/pornography-violence-and-sex...