ANTISOCIAL MEDIA: YouTube Shooting Highlights Frustration Among Some ‘Creators.’ “Some independent video makers complain YouTube has limited their viewership and shortchanged them on ad payments.”

As the number of creators has grown and uploaded a wider range of videos, advertisers have grown more skittish about putting their messages next to what they deem objectionable content. Top brands including Procter & Gamble Co. pulled spending from the site last year after discovering YouTube running their ads before extremist, racist and hateful videos.

In response, YouTube last year began requiring video producers to have more than 10,000 views from their combined videos before they can start making any money from ads. The company also hired more human reviewers to vet videos, removing clips or entire accounts they see as violating their terms of service.

YouTube prohibits nudity, violence, and other categories of content it deems potentially harmful or dangerous. Its terms also restrict copyrighted content and personal information uploaded without consent.

Earlier this year, YouTube raised the bar even more for its video creators that want to carry ads. Rather than 10,000 views, YouTube channels must now have accumulated at least 4,000 hours of watch time in the past 12 months and 1,000 subscribers. YouTube said a “significant” number of channels would be affected but declined to provide more details. The company said nearly all affected channels make less than $100 a year in ad revenue.

The changes had little impact on YouTube’s most popular stars, some who make more than $100,000 on a single video, including sponsorships, according to Evan Asano, chief executive of Mediakix, a marketing agency for YouTube creators. But the new policies cut tens of thousands of smaller video makers off from getting paid, Mr. Asano said.

Some of them, like Chris Thompson, said the company has gone too far in removing content without being clear about what rules it violates.

Indeed. YouTube has been deplatforming countless conservatives without cause or explanation — and yet it was a lone progressive who went on a shooting spree.