Emily Birnbaum, The Hill, December 13, 2018

YouTube removed 58 million videos between July and September this year because they broke community guidelines.

More than 7.8 million of those videos were taken down because they violated community guidelines. The other 50.2 million were taken down as YouTube removed 1.67 million channels.

The online video platform said 72 percent of the videos removed for violating guidelines in the latest quarter were “spam or misleading,” 10.2 percent were removed out of concern for “child safety” and 9.9 percent were removed for including “nudity or sexual content,” according to its latest report.

The “transparency” report, which was released publicly on Thursday, emerges as YouTube touts its efforts to screen and delete harmful content more often and more efficiently.

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This quarter’s report from YouTube includes for the first time information on why videos were deleted, how many channels were taken down and how many comments were deleted.

In order for a video, channel or comment to be removed, a user or machine must first flag it for review.

A team of YouTube employees then assesses whether the content violates the platform’s standards. Google employs tens of thousands of reviewers across its departments, a YouTube spokesman noted.

YouTube deleted over 1.6 million channels between July and September for violating its community guidelines, which bar content including pornography, gratuitous violence, hate speech, cyberbullying, spam, and more. More than 50 million videos were deleted from those channels.

Over 90 percent of the channels deleted in September were terminated for consistently posting spam or adult content.

YouTube in the same quarter removed over 224 million comments, 99 percent of which were first detected by machines.

A YouTube spokesman emphasized to The Hill that YouTube is using machine detection more frequently rather than relying solely on users to flag harmful content.

The report said 81 percent of the more than 7.8 million videos removed during the latest quarter were first detected by machines.

YouTube in August banned conspiracy theorist Alex Jones’s Infowars channel as tech companies began to publicly grapple with the role social media platforms should play in halting the spread of conspiracy theories.

A YouTube spokesman noted that it removes conspiracy theories targeted towards particular groups or people because those videos violate hate speech and harassment policies.

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