Social media has a higher than average noise to signal ratio. For every truly creative or informative blip, there are thousands of useless blurbs, nasty retorts, misinformed mentions and lots and lots of spam. Tumblr is like this. You can skim through page after page of duplicate celebrity photos, bad manips and overused pictures of animals making funny faces. If you keep digging, you will find a few gems like Restaurant-Restaurant (a man who turns restaurant stationary into art) and Last Book I Loved. These are the kinds of Tumblrs that made it to the Storyboard and now Tumblr is shutting it down.