The proverbial "code of the streets" is at best provisional, messy, anti-prudish and diffuse, but every now and then, there is consensus. As in: everyone—the good citizens of San Francisco, tax-paying graffiti artists, and everyone in between—agrees that "post-racist" tagger Katie Dunbar was violating in a major way. (More about "KKKatie" on the "Scavenger" blog.)
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