Comment by UncleMeat

Because it is very very hard to ignore.

I very occasionally get death threats to my work email due to people being unhappy with some public facing stuff I do. It's unsettling but I can mostly ignore it. But if it happened all the time and I wasn't able to open my email or interact with a community without getting hate mail I'd go into a cocoon. People aren't machines. When hatred is relentless it is unbelievably difficult to put it aside.