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 wind.
The environment is essentially one designed for brain viruses, where whether you click RT (after thinking around 5 seconds about it) determines the Rt. The most superficially convincing, novel looking and emotion inducing content wins. You can get your misinformation in two flavors: deliberate disinformation by grifters, or accidental misinformation, sometimes by real experts who (like everyone else) make a sensational mistake that gets super amplified.
The worst bit is that social media is becoming the primary source of news for most people today. The results have been nothing short of catastrophic.
The new CEO has quite a bit of work in front of them.
https://science.sciencemag.org/content/359/6380/1146