Despite what @haxorious is saying, this is not bullshit. This exists for most social media platforms. The ones I'm aware of are Instagram, YouTube, Tumblr, and Facebook. The specific employees in charge of reviewing videos are actually called content reviewers or moderators and they don't really watch the whole video because there isn't enough time. Each agent has a target assigned and it's typically somewhere between 100 to 300 videos or posts in a single work day. Divide 8 hours by 300 and you'll see that they can only afford to spend 1.6 minutes on each video. If you consider bathroom breaks and stuff like that, they have even less time.

So yeah, an actual human being does review the video by skipping along the length of the video. It doesn't even have to be flagged under sexual content. Every single video that has been flagged, regardless of what it was flagged for, will eventually be reviewed by someone.

I personally know people who work as content reviewers for YouTube and Facebook. From what I hear, the article on The Verge is mostly accurate except that it is overly dramatised. I mean my sources don't work in the Arizona branch so maybe it really is that bad in Arizona, but from what I hear, my friends are quite satisfied about the work environment and nobody is traumatised or suicidal because of the work. They also mentioned something about the contract they had to sign about secrecy and basically, the person who talked to Verge is probably either fired or sued by now. The contract says that you are legally bound to secrecy about every single detail no matter how small. You are legally not allowed to even mention that you are working as a content moderator.