Clay Shirky:

Digital media have made creating and disseminating text, sound, and images cheap, easy and global. The bulk of publicly available media is now created by people who understand little of the professional standards and practices for media.
Instead, these amateurs produce endless streams of mediocrity, eroding cultural norms about quality and acceptability, and leading to increasingly alarmed predictions of incipient chaos and intellectual collapse.
But of course, that’s what always happens. Every increase in freedom to create or consume media, from paperback books to YouTube, alarms people accustomed to the restrictions of the old system, convincing them that the new media will make young people stupid. This fear dates back to at least the invention of movable type.
As Gutenberg’s press spread through Europe, the Bible was translated into local languages, enabling direct encounters with the text; this was accompanied by a flood of contemporary literature, most of it mediocre. Vulgar versions of the Bible and distracting secular writings fueled religious unrest and civic confusion, leading to claims that the printing press, if not controlled, would lead to chaos and the dismemberment of European intellectual life.