Growing up in Austin, the bulletin board at our neighborhood park was sort of like the early days of social media -- you'd find dog-walking gigs, garage sale flyers, and considerably weirder stuff long before anyone was trying to go viral. Most people love this sort of community-minded design feature in the abstract, but the Terminator-like gaze of city code has no time for your aw-shucks sentimentality if you build a bulletin board in front . . .