But YouTube staffers cannot monitor all videos all the time.
"We don't pre-screen content. We rely on the billion eyeballs around the world to tell us when they see content that's inappropriate," the spokesperson says, adding that merely flagging a video will not take it down. "You can flag something a thousand times, that doesn't mean it comes down."
YouTube does not comment on specific users. However, Syria4YouandMe is back up and running as of Tuesday, and continues to post videos.
"With the massive volume of videos on our site, sometimes we make the wrong call. When it's brought to our attention that a video or channel has been removed mistakenly, we act quickly to reinstate it," the spokesperson says. "In cases where flagged material is sensitive, but of clear news value, we apply warnings and age-restrictions to safeguard our users."
YouTube has created other tools to help users like Syria4YouandMe. A closed-captioning tool, used in the video above, allows viewers from all over the world to understand what's happening in dozens of languages. The company-sponsored Human Rights Channel highlights content for worldwide atrocities.
It also has a face-blurring tool unveiled last summer, allowing users to add on-the-fly protection for the identities of subjects in a clip.