For
They can cause anxiety and trauma for some people.
Against
They are fictional and help people face fears safely.
Anonymous excerpts, translated where noted.
“I just sat there with my anxiety at like an 8/10 for the two-ish hour runtime.”
“I was having anxiety attacks.”
“It's fiction after all - it can be a safe place to explore ideas they might not want to experience in real life.”
“I think that movie is brilliant and probably one of the best horror movies ever made.”