ReadWriteWeb: "Approximately 2.5 billion photos are uploaded to Facebook every month and 1.2 million photos are served up every second - statistics that point to the importance of Facebook as a site for sharing pictures. And although the emphasis has been on sharing, it hasn't been necessarily on the quality of photos shared.
Today, Facebook begins rolling out several improvements to Photos that will make the site much better for sharing high-quality photos. The new features include some UI changes to make browsing and uploading easier, as well as upping the pixel size for photos so that Facebook can handle higher resolution images."
Facebook has to implement new rules for Facebook Live because people are literally the worst. Now, if you break the rules you'll receive a ban.