This story about Elmo spreading democracy-threatening election misinfo on Twitter is precisely why everyone needs to treat that platform like the pariah it is. No, you sticking around to counter the misinfo won't help. That's like raking leaves in a wind storm. And yes, I know there's community there, but mingling there does you and all of us more harm than good.
The most effective thing you can do is stop giving Twitter oxygen and allowing it to become just another fringe outlet, like 4chan or Daily Caller. With the very real prospect Trump will retake the White House, this stuff matters.
