In the networked public sphere, the goal of the powerful often is not to
convince people of the truth of a particular narrative or to block a
particular piece of information from getting out (that is increasingly
difficult) but to produce resignation, cynicism, and a sense of
disempowerment among the people.
This can be done in many ways,
including inundating audiences with information, producing distractions
to dilute their attention and focus, delegitimizing media that provide
accurate information (whether credible mass media or online media)
deliberately sowing confusion, fear, and doubt by aggressively
questioning credibility (with or without evidence, since what matters is
creating doubt, not proving a point), creating or claiming hoaxes, or
generating harassment campaigns designed to make it harder for credible
conduits of information to operate, especially on social media which
tends to be harder for a government to control like mass media.
-- Zeynep Tufekci.
Twitter and Tear Gas: The Power and Fragility of Networked Protest
Yale Univ. Press (2017).