The interesting concept relevant to this is context collapse. Whenever you get enraged about something on the internet by seeing a couple of tweets, Facebook post or such, usually you're not getting a full context of the situation. You only get a view from one perspective, possibly giving you a lopsided insight and just enough information to confirm your existing ideas and beliefs and give you a permission to go into righteous outrage, which is damn addictive.
The situation that crystalised that for me was when Quinn Norton got signed on as an opinion writer for the NYT. She would have been great as an opinion writer. He could have contributed greatly to the conversations about tech, the internet, equality, race, US today and a host of other topics. But, thanks to the context collapse of a few selected tweets and an angry mob, she got fired before she even started.
Here's her account of it: