Someone tipped off Stephen Colbert to the recent rant against the city’s new bikeshare system by Wall Street Journal editorial board member Dorothy Rabinowitz  — and thank god for that. “The most important danger in the city is not the yellow cabs. It is the bicyclists,” Rabinowitz says, adding that the new “blazing blue” bikes-for-rent have “begrimed” the city’s neighborhoods. Uh, we’ll just let Stephen take it from there.