Many of us snickered upon hearing the news — Marion Barry, the District’s mayor-for-life and most infamous crack addict, had been caught again, victim of his own inability to stay away from illegal drugs. Just the same, some of Barry’s defenders started coming out of the woodwork, celebrating a man who while imperfect was still a reason for hope for many of the city’s residents. In today’s edition of DC Watch’s widely read online newsletter,…