In Chinatown “If you have something to say you write it up and you just post it up,” according to councilwoman Margaret Chin. Not on Craigslist or Yelp, on ad walls peeling with little white leaflets, or on any sign post or street lamp. Written out in Mandarin and Cantonese characters, the fliers' subjects range from rooms for rent (price negotiable) to complaints about particular lawyers, the Times reports in a profile of the vibrant communication spaces. Lincoln Cushing, co-author of “Chinese Revolutionary Posters,” says the posting practice dates back to after the 1949 revolution, when walls like the ones on Forsyth Street Manhattan and inside A & N Food Market in Flushing were rural towns’ conversation hubs, with posts constantly being read and responded to.