> Ignoring them doesn't fix the problem.
"The problem". What problem are we talking about again here? Is the problem that people are believing wrong things, or the spread of polarization and toxicity?
I don't care if people believe "wrong things". How's that old song go? "All lies and jests, still a man hears what he wants to hear, and disregards the rest"? People will always believe whatever they want to, regardless of "evidence", regardless of history, regardless of persuasion. "Post-truth" society is such a ludicrous term. There was never a "truth society" to begin with. Never. If someone doesn't want to change their mind, you're tilting at windmills. Doubly so if this person is an anonymous account.
What I care about is stopping the spread of toxic and divisive stereotypes.
Look at the front page of Reddit. Every other post is a screenshot of an outrageous anonymous tweet, or a picture of a receipt with a nasty note on it, or a text message conversation. Look at how the public receives this: "Who cares if it's real or fake? The point is that it reinforces my stereotype of 'them'. We know 'they' exist, and we must do something about 'them'."
That's what's driving polarization and toxicity. The urge to respond with outrage to anonymous trolls. This is a problem we can fix by down voting and moving on.