"Tumblr has announced that it will no longer allow adult content beginning December 17th. The site, which is owned by Engadget's parent company, says that content includes "photos, videos or GIFs that show real-life human genitals or female-presenting nipples and any content -- including photos, videos, GIFs and illustrations -- that depicts sex acts." The move comes just after Tumblr's app was removed from the App Store, reportedly because of images of child sexual abuse that made their way onto the site.
In a statement, Tumblr said at the time that while it scans every uploaded image against a database of known child sexual abuse material, images that hadn't yet been included in the database were found on its site. It removed the content and reiterated that it had a "zero tolerance policy" against that type of material. But during that same time, Tumblr was also reportedly removing other posts featuring adult content, which some people believed to be a response to the App Store removal"
https://www.engadget.com/2018/12/03/tumblr-blocking-adult-content-december-17th/
In a statement, Tumblr said at the time that while it scans every uploaded image against a database of known child sexual abuse material, images that hadn't yet been included in the database were found on its site. It removed the content and reiterated that it had a "zero tolerance policy" against that type of material. But during that same time, Tumblr was also reportedly removing other posts featuring adult content, which some people believed to be a response to the App Store removal"
https://www.engadget.com/2018/12/03/tumblr-blocking-adult-content-december-17th/