Eric Meyer talks about the death of his daughter and the beauty and the cruelty of the web. The same process that memorialized his daughter so sweetly in the CSS tag for #663399 is the same process that created GamerGate. Many say that these processes are neutral, and what can be used for good can be used for evil. But the truth is that most online interactions can be improved by better, empathetic design.
Meyer talks about the remake of League of Legends to reduce online abuse. See Analytics of Empathy
Abuse is a serious problem, but UI can help. See Reducing Abuse on Twitter
One problem with Twitter is conversations tend towards polarization. See Streams Don’t Merge