Twitter and other social media are probably the biggest problem of our time. By providing simple rules of information flow: small amount of content, retweet, followers) and rewards (likes), they've created the most efficient engines for finding and spreading novelty at the expense of everything else. There are no incentives to improve accuracy, increase thoughtfulness, paint nuance. Fact checking gets lost in the win…
I believe that free publishing, or many-to-many media, is crucial for the future of our society. If anything, it is still not easy enought to get ideas out there and discussed (unless you have enough reach).
To phrase it a bit provocatively, I believe radical democracy is a good thing, even if many of the plebs are stupid.