Stumbler: Fixing Neighborhood Sidewalks Via Tumblr

Fed up with weird city policies for fixing sidewalks, San Diego news nonprofit Voice of San Diego decided to make a Tumblr devoted only to photos of the worst blocks in town. It's sort of like a more focused version of SeeClickFix or other sites that help citizens point out needed repairs to city government. I wonder how Tumblr could be used to help bring attention to other specific city issues.