Some cyberbullies show signs of PTSD, according to a UK study
https://edition.cnn.com/2020/06/24/health/cyberbullying-post-traumatic-stress-disorder-wellness/index.html
For me, it's not relatively uncomfortable just to see simple comments like "Die" "Foolish", or "Disappear".
But, when it comes to insulting me theoretically with impolite words, it's extremely uncomfortable for me, and makes me irritated.
Anyway, if you are involved in an accident which cannot be solved by yourself, you had better block the attacking account.