But the policy change caused some users to abandon the site. The new policy went into effect December of , and resulted in the deletion of any content portraying " real-life human genitals or female-presenting nipples. Reaction to Tumblr's announcement was swift and critical across social media. More than , people have signed a Change.

Newgrounds
The Atlantic Crossword
After the Tumblr exodus, the sites promising to be perfect replacements are still working out their, er, kinks. In the wake of this mass exodus, dozens of websites old and new have popped up, attempting to court alienated Tumblr users by promising a safe haven. The reality, however, has looked bleak: crashing pages, caps on new users and policies that actually prove hostile to sex work. Shortly after the ban, Dreamwidth, a text-centric, LiveJournal-esque platform created in , and Pillowfort , a new social media platform still in beta, were slammed with thousands of former Tumblr users.
Fast Company
The first is that it barely survived. The total volume of visits to the site is in decline, as is the number of visits per unique visitor, as is the amount of time that visitors spend on the site. From to , the average site visit dropped by nearly a minute, and the average number of pages per visit dropped by more than one and a half. Even more striking, the average monthly volume of traffic to the Tumblr login page by U. The numbers are stark, but not surprising. Until , when Yahoo still owned Tumblr but was not yet itself owned by Verizon and had not yet merged with AOL, it had an in-house research team tasked with understanding the mechanics and sociology of the various websites it owned. The lab published one of its last studies postmortem, in January , mapping the place of porn in communities on Flickr and Tumblr.
An award-winning team of journalists, designers, and videographers who tell brand stories through Fast Company's distinctive lens. Leaders who are shaping the future of business in creative ways. New workplaces, new food sources, new medicine--even an entirely new economic system. And on December 17, the ban took full effect, with any flagged posts being hidden, and a special effort placed on finding new infringing content as it went up. Yet, nearly two months after the ban went into effect, Tumblr is still flooded with NSFW content—from female nipples to male and female genitalia to every conceivable sex act. Since announcing the NSFW ban, Tumblr and its parent company Verizon have faced harsh criticism for the performance of its image recognition algorithms. Not for banned content but false positives—overzealously flagging things like a melon, raw chicken, or bulbous rocks as forbidden content at least into January, according to a CNN report. But it appears that the company also has an epidemic of false negatives—allowing an abundance of porn to slide through on an hourly basis.