The fall of apple

You are right, we can do better. Expect a change of the public shares pages soon!

I can't even use the up and down buttons on the keyboard to scroll!

Consider the fact that misframer hosting the image on imgur and posting it made me very happy. The best way to read a document or look at an image is to let people see the document/image without ~160px worth of horizontal space taken up by unnecessarily large headers/footers/controls (download, report, etc..)

Look at how most browsers create the experience of reading a pdf or something. Chrome provides useful controls at the bottom-right that are invisible until you mouse into the area. Make it about the content, not getting people to use your service. Get them to use the service without making the core service bad or they certainly won't use it.