Starting May 15, Imgur is instituting a ban on any images containing nudity, pornographic, or otherwise "mature" content. They'll also purge any images not uploaded by a registered account.
So all those images of guides, how-tos, and examples? Those will disappear. I suspect this is going to have an effect on websites like GitHub and GitLab where folks have used Imgur to host the images in their projects' README files.
Even worse, there will be a massive loss of images of protests, government corruption, and citizen journalism. Many of those photos were uploaded anonymously to protect the creator.