Online hatred is more harmful because of the speed and the reach. I can get onto my computer and attack any one of you personally with lies, put it out there and then suddenly it's true. It's instant; it has worldwide reach.
I can spend $1,000 and get 500,000 people to see it by midnight tonight if I really want to. That's just how effective online publications are.
If I have 1,000 friends on Twitter and I get them to do it, that probably quadruples its exposure. Then somebody cuts and pastes it and sticks it somewhere else. It's really hard to cut and paste a book or an article, but it's really easy to cut and paste a little thing. You just take a screenshot and make your own article. The derivative articles come out really fast.
Information runs away on the victim very fast. It's really hard to get in front of it. Everybody who has been in politics understands that need to get ahead of it. When it's driven by hatred, the obsession is so strong to “get” that person that it seems they'll do anything to do it. Therefore, the publications just get put out there, with multiple copies and things like this. It's the speed and the reach that's the problem.