Here are a few quotes from Ronson's talk, referring to the vicious mindlessness of the baying online mob, (emphases added) ...
"Why do we do it? Some people were genuinely upset, but I think that for some people Twitter is basically a mutual approval machine; we surround ourselves with people who feel the same way we do and we approve each other and that creates a really good feeling and if someone gets in the way we screen them out, and you know what that is the opposite of?... It's the opposite of democracy."
(As a result)..."everybody becomes more conservative and conformist. This is another irony of social media. On social media we see ourselves as non-conformist and yet all of this surveillancing (sic) of other people is inevitably creating a more conservative and conformist society because ... we define the boundaries of normality by tearing apart the people outside."
"The great thing about social media was how it gave a voice to voiceless people but we are now creating a surveillance society where the smart way to survive is to go back to being voiceless. Let's not do that."