Twitter had better resources to prevent NSFW mishaps from creeping into your feed. In 2017, Twitter had dedicated ML resources driving their recommendation eng

Twitter had better resources to prevent NSFW mishaps from creeping into your feed. In 2017, Twitter had dedicated ML resources driving their recommendation engine + human moderators on fallback duty. You need to explicitly opt-in via web app before you can see NSFW using their app. In comparison, Tumblr struggled with NSFW content as they relied heavily on users to police content. Without opting-in, pornograhic posts regularly bled into standard content. With the demographics, CSAM content quickly started to do the same.