Virtually everything supports progressive jpegs nowadays, and unlike adam7 interlacing on png, high dimension progressive jpgs are smaller than baseline jpgs. Why doesn't osu! use progressive?
I guess bandwidth doesn't matter very much in the long run, but there are over 300k images being hosted through the shift+f12 method, and using progressive reduced my screenshot folder of 200 images down 10%. 10% smaller file sizes means 10% less storage space, 10% faster upload and download speeds, and 10% less data transferred for those of us with a data cap.
Progressive jpegs look better too, since they're interlaced.
I guess bandwidth doesn't matter very much in the long run, but there are over 300k images being hosted through the shift+f12 method, and using progressive reduced my screenshot folder of 200 images down 10%. 10% smaller file sizes means 10% less storage space, 10% faster upload and download speeds, and 10% less data transferred for those of us with a data cap.
Progressive jpegs look better too, since they're interlaced.