Imgur, a popular photo-uploading service that has been informally tied to Reddit since its 2009 founding, will remove two types of content from its platform starting next month: explicit or pornographic imagery, and images uploaded anonymously — the latter with a lean on unused images, according to the company. While technically banned from Imgur for years through its community rules, adult content hasn’t been actively removed (and is incredibly popular). Until now.

The move is also going to be disastrous for the continuity of the internet. Like Photobucket before it, Imgur has been widely used to host millions of photos that are linked to, embedded, or used elsewhere, and lots of these photos were uploaded by people who didn’t bother to sign up for accounts. Imgur is especially popular as a host for Reddit, meaning the content of those old posts could suddenly disappear off the internet. The move will likely also break embeds in various forum posts and blog posts all over the internet, creating an unpleasant form of link rot. (The Archive Team, generally a harbinger of shuttering sites, is working on backing up this material, according to an announcement on Reddit.)