content: It's about distribution. She has over 5,000 followers on Twitter. If she put that on her blog or Facebook or whatever, she is probably going to reach a lot fewer people. Ya she could just Tweet a link -- but she'd still probably reach a lot fewer people. For one, people don't like clicking links. And two, posting a tweetstorm (what this is called) is a really good way to get something seen (as long as it's worth seeing and doesn't piss off your followers). You take over the feed of your followers temporarily. It's much more powerful than just one tweet. Think of it like being able to take over the front page of Voat for 5 minutes. You'd get a lot more eyeballs than with one link.